Toll Free: 1 (866) 800-8060
Monday to Friday: 6:30am to 6pm Pacific Time
We're here to help. Call us!

Reach us Monday to Friday, 6:30am to 6:00pm Pacific Time.

  • Toll Free: 1 (866) 800-8060
  • Vancouver BC: (604) 739-8060
  • Victoria BC: (250) 800-2569
  • Calgary AB: (403) 775-1291
  • Edmonton AB: (780) 628-6630
  • Winnipeg MB: (204) 800-4372
  • Toronto ON: (416) 800-4312
  • Ottawa ON: (613) 686-4717
  • Montreal QC: (438) 288-3640
  • Quebec City QC: (418) 263-4870
  • Halifax NS: (902) 800-4465
We deliver FAST
  • Same Day Shipping
  • Warehouse Pickups ($100+)
  • Vancouver Service Centre Pickups
Why choose Frontier PC?
  • Proudly Canadian for 22 years
  • Delivery from local warehouses
  • Same day local shipping
  • Real-time stock & pricing
  • Enhanced product information
  • Dedicated account reps
  • Secure online checkout

Order online or by phone before noon local time and you order of in-stock item will ship on the same business day.

  Category: Controllers > Multiport Serial Adapters
Browse top sellers, or select a category from the left.
StarTech.com 4 Port Low Profile Native RS232 PCI Express Serial Card with 16950 UART

PCI Express - 4 x DB-9 Male RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1015391181 Mfr. Part: PEX4S952LP
The PEX2S952LP low profile/half-height PCI Express Serial Card turns a PCI Express slot into two RS232 (DB9) serial connections. The card is constructed using a native single chip design that lets you harness the full capability offered by PCI Express (PCIe), while reducing the load applied to the CPU by as much as 48% over conventional bridge chip serial cards. The PCI Express RS232 Serial Adapter Card is compatible with a broad range of operating systems, including Windows 2000/XP/2003/Vista, Linux Kernel 2.6.11 and up, and ships with a low profile bracket installed but includes an optional full profile bracket that lets you add two serial ports to virtually any computer (regardless of the case form factor).

$117.95
18 In-Stock
SIIG CyberSerial JJ-E20011-S3 2-port Multiport Serial Adapter

PCI Express x1 - 2 x DB-9 RS-232 Serial Via Cable

Quick Info Web ID: 1016570724 Mfr. Part: JJ-E20011-S3
PCI Express 1-lane (x1) adapter works with PCI Express slots with different lane width. Installs in any available PCI Express slot. Two high-speed serial ports (9-pin) support asynchronous baud rates up to 15 Mbps. Works as standard RS232 port or with 5V or 12V power output for devices that require power (such as handheld scanners, table scanners, POS displays, etc.). Configurable via jumpers with silk-screened settings on PCB. Spare enhanced low profile bracket is included to work in low profile chassis.

$67.76
16 In-Stock
StarTech.com 8 Port Low Profile PCI Express RS232 Serial Adapter Card w/ 161050 UART

PCI Express x1 - 8 x DB-9 Male RS-232 Serial Via Cable

Quick Info Web ID: 1024696413 Mfr. Part: PEX8S1052
Add 8 RS-232 serial ports to your computer through a single low profile PCI Express slot. The PEX8S1052 8 Port Low Profile PCI Express RS232 Serial Adapter Card w/ 161050 UART lets you add 8 RS-232 serial ports to your computer through a single low profile PCI Express slot.Supporting data rates up to 460.8 Kbps, the PCI express serial port card offers a high performance 16C1050 UART and a large 256-Byte transit/receive FIFO buffer that work together to provide high-speed serial communication while reducing the overall load on the system CPU.Suitable for most standard computer chassis, the 8 port serial card offers a low profile/half-height design and includes an optional full-height bracket. The included break-out cable uses a single connector on the card to deliver 8 ports, avoiding crowded connections that can occur with fixed/static ports.Backed by a StarTech.com lifetime warranty and free lifetime technical support.

$241.95
6 In-Stock
StarTech.com 4 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART

PCI Express - 4 x DB-9 Male RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1013140847 Mfr. Part: PEX4S952
This PCI Express serial adapter card allows you to turn a PCI Express slot into 4 RS-232 (DB9) serial connections. The adapter card is based on a native single chip design, that allows you to harness the full capability of PCI Express (PCIe) - providing optimum reliability and speed, and reducing the load applied to the CPU by as much as 48% over conventional serial cards. The RS232 Serial Adapter Card is compatible with a broad range of operating systems, including Windows 2000/XP/2003/Vista, Linux Kernel 2.6.11 and up, as well as Mac OS 10.4 and above. Plus, the adapter card includes an optional low profile/half-height bracket that allows the card to be installed in virtually any computer case - making it that much easier to add serial ports to a PCI Express enabled computer, regardless of the size of the computer case.

$117.95
5 In-Stock
StarTech.com 8 Port PCI RS232 Serial Adapter Card High Speed 16950 cable included

8 x DB-25 Male RS-232 Serial - Full-length Plug-in Card - DB-25 Male 4ft Fan-out Cable

Quick Info Web ID: 10240382 Mfr. Part: PCI8S9503V
This high speed 16950 Serial PCI Card uses a 16 Byte buffer simultaneously in both transmit and receive channels, reducing the number of CPU interrupts while improving system performance._x000D_ The card lets you connect up to 8 RS-232 serial devices to the host computer, and can be installed in either a 3.3V or 5V PCI/PCI-X slot._x000D_ Ideally suited to industrial applications, the buffered Serial PCI card is compatible with a broad range of operating systems, including Windows, DOS, Linux, and Unix operating environments._x000D_ Backed by Lifetime Warranty.

$83.71
4 In-Stock
StarTech.com 4 Port RS232 PCI Express Serial Card w/ Breakout Cable

PCI Express x1 - 4 x DB-9 Male RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1019462157 Mfr. Part: PEX4S553B
The PEX4S553B 4-Port PCI Express Serial Card (with breakout cable) lets you add 4 RS232 serial ports using a single PCIe expansion slot. The PCIe Serial Card includes a 1-to-4 break out cable, which enables you to add 4 serial ports to a single low profile slot. The serial adapter card features a native single-chip design that provides optimum reliability and speed, reducing the CPU load by up to 48% over conventional bridge-chip serial cards - a cost-effective solution for connecting legacy serial devices to PCIe-enabled computers. The multi-port serial adapter includes both full profile/height and low profile/half-height brackets for compatibility with standard and small form factor computers, and is compatible with a broad range of operating systems, including Windows 7/Server 2008 R2, 2003/Vista/XP (32 and 64 bit), Linux Kernel 2.6.11 and up, as well as MAC OS 10.5 and above.

$137.95
4 In-Stock
StarTech.com 2 Port RS232 PCI Express Serial Card with Power Output

PCI Express 1.1 - 2 x DB-9 Male RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1021631761 Mfr. Part: PEX2S952PW
Add 2 RS232 serial ports with 5V or 12V selectable power output to your computer through a PCI Express slot. The PEX2S952PW 2-Port PCI Express Serial Card (with Power Output) turns a PCI Express slot into 2 RS232 (DB9) serial connections and enables compatible devices to draw power from the serial ports.Suitable for many RS232-powered serial applications, this PCIe serial card offers a selectable 5V or 12V power option capable of power output using pin 1, 4, 8 or 9, allowing you to configure the card to suit the requirements of your powered RS232 devices.A flexible solution for adding serial ports to small form factor or full-sized systems, the 2-port serial card includes both low and full profile brackets and features a 4-layer PCB (with separate layers for data and ground) to greatly reduce signal noise and loss.To ensure maximum performance, the serial card is based on a native single chip design, that allows you to harness the full capability of PCI Express (PCIe) - providing optimum reliability and speed while reducing the load applied to the CPU by as much as 48% over conventional (bridge chip) serial cards.Backed by a StarTech.com Lifetime warranty and free lifetime technical support.

$29.75
2 In-Stock
SIIG JJ-P04621-S7 4-port Multiport Serial Adapter

PCI - 4 x DB-9 RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1018400132 Mfr. Part: JJ-P04621-S7
SIIG's DP Quartet Serial 550 PCI is an excellent solution designed to add four additional 9-pin RS232 serial ports for connecting multiple serial-based devices to your PCI-enabled desktop computer. This 4-port serial adapter card comes with four high-speed 16550 UART serial ports supporting data transfer rate of up to 230Kb/s. The serial ports can work as either standard RS232 ports, or can be independently configured as 5V /12V power outputs for devices that require power such as handheld scanners, table scanners, and POS displays. The DP Quartet Serial 550 PCI features IRQ sharing to reduce IRQ conflicts, built-in 32-byte FIFO buffers to dramatically increase data transmit/receive speed especially under Windows multitasking environment, and PME (Power Management Event) that allows device to request a change in system power state (wake up system). It features dual-profile design to work in standard-height and low-profile chassis with the included brackets, and Universal PCI car

$96.57
1 In-Stock
StarTech.com 4 Port PCI Express RS232 Serial Adapter Card with 16950 UART

PCI Express - 4 x DB-9 Male Serial - Plug-in Card

Quick Info Web ID: 1011181211 Mfr. Part: PEX4S950
This PCI Express Serial Adapter card can be installed into any PCI Express slot on a computer, to provide four high performance 16C950 RS232 serial UART channels/ports - a convenient solution for connecting modern or legacy serial devices with support for data transfer rates of up to 460 Kbps._x000D_ The serial adapter card is easy to install, with support for Windows® 2000, XP, 2003 and Vista. Plus, the card features IRQ sharing and supports plug and play serial device connections, guaranteeing convenient, hassle-free installation._x000D_ The 4 Port PCI Express 16C950 Serial Card is backed by StarTech.com's lifetime warranty and FREE LIFETIME tech support.

$102.95
1 In-Stock
StarTech.com 8 Port PCIe RS232/422/485 Serial Card- 4x RS232 4x RS422/RS485

PCI Express x1 - 8 x DB-9 Male RS-232/422/485 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1025484920 Mfr. Part: PEX8S232485
Add four RS232 and four RS422/485 serial ports to your standard or low profile system through a PCIe slot. The PEX8S232485 8-Port PCIe Serial Combo Card lets you add four RS232 and four RS422 / RS485 serial ports to your PC through a single PCI Express expansion slot.This multi-port serial card is a single card solution that offers compatibility with nearly any serial communication protocol, supporting RS-232, RS-422, RS-485 2-wire or RS-485 4-wire operating modes at data rates up to 460Kbps.To fit most standard computer cases, the card ships with a standard profile bracket installed and includes a low-profile / half-height bracket for adapting to slimline or small form factor systems. Plus, the included breakout cable helps to avoid cluttered connections.Backed by a StarTech.com lifetime warranty and free lifetime technical support.

$257.95
1 In-Stock
StarTech.com 2 Port RS232 PCI Express Serial Card w/ Breakout Cable

PCI Express - 2 x DB-9 Male RS-232 Serial

Quick Info Web ID: 1021141454 Mfr. Part: PEX2S553B
Add 2 RS-232 serial ports to your standard or small form factor computer through a PCI Express expansion slot. The PEX2S553B 2-Port PCI Express Serial Card w/ Breakout Cable lets you add two RS232 serial ports using a single PCIe expansion slot. With the included break-out cable, you can easily add two ports to a single low profile slot.The PCIe serial card features a native single-chip design that provides optimum reliability and speed, reducing the CPU load by up to 48% over conventional bridge-chip serial cards - a cost-effective solution for connecting legacy serial devices to PCIe enabled computers.The multiport PCIe Serial Adapter includes both full and low-profile/half-height brackets for compatibility with standard and small form factor computers, and is compatible with a broad range of operating systems, including Windows 7/Server 2008 R2, 2003/Vista/XP (32 and 64 bit), Linux Kernel 2.6.11 and up, as well as MAC OS 10.5 and above.This product is a replacement for our PEX2S552B card.Backed by a StarTech.com lifetime warranty and free lifetime technical support.

$51.68
15 In-Stock*
Comtrol RocketPort EXPRESS Quadcable DB9 Multiport Serial Adapter

PCI Express x1 - 4 x DB-9 Male RS-232/422/485 Serial Via Cable - Plug-in Card - DB-9 Fan-out Cable

Quick Info Web ID: 1011193832 Mfr. Part: 30126-4
The RocketPort EXPRESS Quad DB9 is a four port serial adapter that is compatible with systems that have x1, x4, x8, or x16 PCI Express expansion slots. The card is designed for standard and low-profile PCs and servers and ships with a low-profile and a standard-height bracket. The product provides support for software-selectable RS-232/422/485 serial communications and data transmission speeds up to 921 Kbps. Serial connections are made utilizing an external quadcable with four DB9M connectors that is included with the product. All RocketPort EXPRESS products are European RoHS directive compliant.

$347.99
14 In-Stock*
Digi Edgeport/8 Multiport Serial Adapter

8 x DB-9 Serial - External Hot-swappable

Quick Info Web ID: 10023234 Mfr. Part: 301-1002-08
Edgeport USB-to-serial converters offer an easy Plug and Play solution for COM port expansion. An external box alternative to PCI cards, Edgeport connects serial devices to a PC or server's USB port, eliminating the need to open the chassis, reconfigure and reboot. Simply plug in the Edgeport and in minutes gain up to 16 serial ports to connect bar-code scanners, printers, or any serial peripheral device.

$450.99
13 In-Stock*
Comtrol RocketPort EXPRESS Octacable DB9 Multiport Serial Adapter

PCI Express x1 - 8 x DB-9 Male RS-232/422/485 Serial Via Cable - Plug-in Card - DB-9 Fan-out Cable

Quick Info Web ID: 1011193830 Mfr. Part: 30128-8
The RocketPort EXPRESS Octa DB9 is an eight port serial adapter that is compatible with systems that have x1, x4, x8, or x16 PCI Express expansion slots. The card is designed for standard and low-profile PCs and servers and ships with a low-profile and a standard-height bracket. The product provides support for software-selectable RS-232/422/485 serial communications and data transmission speeds up to 921 Kbps. Serial connections are made utilizing an external fan-out octacable with eight DB9M connectors that is included with the product. All RocketPort EXPRESS products are European RoHS directive compliant.

$440.99
10 In-Stock*
StarTech.com 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485

PCI Express x1 - 4 x DB-9 Male RS-232/422/485 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1023915507 Mfr. Part: PEX4S232485
Add two RS232, and two RS422/485 serial ports to your PC through a PCI-Express expansion slot. The PEX4S232485 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485 lets you add two RS232, and two RS422/485 serial ports to your PC through a PCI-Express expansion slot.This PCI express serial card is a single card solution that is compatible with nearly any serial communication protocol, supporting RS-232, RS-422, RS-485 2-wire or RS-485 4-wire operating modes.A flexible solution for adding serial ports to full-sized, or small form factor systems, the 4-port serial card includes both low and full profile brackets while the included breakout cable helps to avoid cluttered connections.Backed by a StarTech.com lifetime warranty and free lifetime technical support.

$145.95
8 In-Stock*
StarTech.com 2 Port Native ExpressCard RS232 Serial Adapter Card with 16950 UART

ExpressCard/34 - Plug-in Module Hot-pluggable

Quick Info Web ID: 1013227053 Mfr. Part: EC2S952
This 2 Port ExpressCard-based Serial Card lets you add 2 RS232 serial ports to your laptop or ExpressCard equipped desktop computer, using an available ExpressCard slot. Featuring 128-byte FIFO communication, and a high performance 16C950 UART, the ExpressCard Serial Adapter card offers up to 460Kbps data transfer rates, which ensures peak communication with your serial peripheral devices.

$79.36
7 In-Stock*
Digi Neo 4 Port Multiport Serial Adapter

PCI Express - 4 x RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1011262957 Mfr. Part: 77000890
Digi Neo PCI Express multiport serial card leverage an Application Specific Integrated Circuit (ASIC) to provide throughput speeds exceeding 460.8 Kbps, large buffers for data transfer, low latency and baud rate customization.

$315.99
7 In-Stock*
Digi Edgeport/2 Multiport Serial Adapter

2 x DB-9 RS-232 Serial - External Hot-swappable - Type A 1.01m USB Cable

Quick Info Web ID: 10023148 Mfr. Part: 301-1000-02
Edgeport USB-to-Serial Converters offer an easy Plug-and-Play solution for instant COM port expansion. An out-of-the-box (external) alternative to PCI cards, the Edgeport connects to the USB port of a PC, thin client, notebook or server, eliminating the need to open the chassis, reconfigure and reboot.

$176.99
6 In-Stock*
StarTech.com 8 Port PCI Express Low Profile Serial Adapter Card

PCI Express - 8 x DB-9 RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1011181165 Mfr. Part: PEX8S950LP
This PCI Express Low Profile 16C950 Serial Card offers two 16C950 UART compatible serial ports, in turn providing eight RS 232 connections, maximizing serial connectivity for use with a broad variety of peripherals including printers, scanners, and more. Plus, PEX8S950LP is designed to fit in small/micro form factor computer cases, making it the perfect choice when space is at a premium.

$210.95
5 In-Stock*
StarTech.com 16 Port Low Profile RS232 PCI Express Serial Card - Cable Included

PCI Express - 16 x DB-9 Male RS-232 Serial Via Cable - Plug-in Card - DB-9 Male Serial Cable

Quick Info Web ID: 1015565812 Mfr. Part: PEX16S952LP
The PEX16S952LP PCI Express serial card (16950 UART) lets you turn a low profile PCIe slot into sixteen RS232 (DB9) serial connections. The serial adapter card is based on a native single chip design that allows you to harness the full capability of PCI Express (PCIe), delivering optimum reliability and speed while reducing the load applied to the CPU by as much as 48% over conventional serial cards. This low profile serial card is compatible with a broad range of operating systems, including Windows 2000, XP, 2003, Vista and Windows 7, and features a VHDCI 68 pin connector and serial breakout cable for installation into a single low profile expansion card slot.The card also includes a full-sized bracket, for installation in standard form factor computers.

$383.95
5 In-Stock*
StarTech.com 8 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART

PCI Express - 8 x DB-9 Male RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1013140846 Mfr. Part: PEX8S952
This PCI Express based serial adapter card allows you to turn a PCI Express slot into eight RS232 (DB9) serial connections. The adapter card is based on a native single chip design, that allows you to harness the full capability of PCI Express (PCIe) - providing optimum reliability and speed, and reducing the load applied to the cpu by as much as 48% over conventional serial cards. The RS232 Serial Adapter Card is compatible with a broad range of operating systems, including Windows 2000/XP/2003/Vista, Linux Kernel 2.6.11 and up, as well as MAC OS 10.4 and above.

$213.95
4 In-Stock*
Digi Neo 8 Port Multiport Serial Adapter

PCI Express - 8 x RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1011262956 Mfr. Part: 77000889
Digi Neo PCI Express multiport serial card leverage an Application Specific Integrated Circuit (ASIC) to provide throughput speeds exceeding 460.8 Kbps, large buffers for data transfer, low latency and baud rate customization.

$426.99
4 In-Stock*
StarTech.com 8 Port Low Profile RS232 PCI Serial Card with 16950 UART

PCI-X - 8 x DB-9 Male RS-232 Serial Via Cable - Plug-in Card - DB-9 Male Serial Cable

Quick Info Web ID: 1015565813 Mfr. Part: PCI8S950LP
Add 8 RS-232 serial ports to your computer via a single low profile or full height PCI slot. The PCI8S950LP 8 Port Low Profile RS232 PCI Serial Card with 16950 UART lets you turn a single low profile PCI slot into eight RS232 (DB9) serial connections. The unique design of the serial card and included break out cable feature a VHDCI (Very High Density Cable Interconnect) connector, enabling the addition of 8 serial interfaces while only using a single expansion slot. With the included full height bracket, this card can be easily installed in almost any computer case. The 8-port serial adapter card is compatible with a broad range of operating systems, including Windows 2000/XP/2003/Vista/Server 2008 R2/7, as well as Linux Kernel 2.4.x and up. A cost-effective solution for connecting industrial process control and monitoring equipment, serial modems, POS devices, ISDN terminal adapters and more to your system.

$166.95
2 In-Stock*
Digi Edgeport/4 Multiport Serial Adapter

4 x DB-9 Serial - External Hot-swappable

Quick Info Web ID: 10023235 Mfr. Part: 301-1000-04
Edgeport USB-to-serial converters offer an easy Plug and Play solution for COM port expansion. An external box alternative to PCI cards, Edgeport connects serial devices to a PC or server's USB port, eliminating the need to open the chassis, reconfigure and reboot. Simply plug in the Edgeport and in minutes gain up to 16 serial ports to connect bar-code scanners, printers, or any serial peripheral device.

$315.99
2 In-Stock*
StarTech.com 4 Port Native ExpressCard RS232 Serial Adapter Card with 16C950 UART

ExpressCard/34 - 4 x DB-9 Male RS-232 Serial Via Cable - Plug-in Module

Quick Info Web ID: 1017465361 Mfr. Part: EC4S952
Control and communicate with up to 4 RS232 serial devices through your laptop ExpressCard slot. The StarTech.com EC4S952 4-Port ExpressCard-based Serial Card lets you add four RS232 serial ports to your laptop or ExpressCard equipped desktop computer, using an available ExpressCard slot. The ExpressCard Serial adapter is designed based on a single-chip architecture (as opposed to cards that use a "bridge chip"), providing native PCI Express communication for greater performance and reliability, as well as reduced power consumption and CPU load reduction of up to 48%. Compatible with ExpressCard 34mm and ExpressCard 54mm card slots, the 4 Port Serial ExpressCard includes a slot spacer for greater stability while installed in 54mm slots. Backed by a StarTech.com 1 year warranty and free lifetime technical support.

$120.95
1 In-Stock*
Digi Edgeport/416 Multiport Serial Adapter

16 x DB-9 Male RS-232 Serial - Rack-mountable Hot-swappable - Type A 1.01m USB Cable

Quick Info Web ID: 10023111 Mfr. Part: 301-1000-10
Edgeport USB-to-Serial Converters offer an easy Plug-and-Play solution for instant COM port expansion. An out-of-the-box (external) alternative to PCI cards, the Edgeport connects to the USB port of a PC, thin client, notebook or server, eliminating the need to open the chassis, reconfigure and reboot.

$756.99
1 In-Stock*
Comtrol RocketPort INFINITY 32-Port Card

Universal PCI - 32 x DB-9 Male RS-232/422/485 Serial - Plug-in Card

Quick Info Web ID: 1011138762 Mfr. Part: 30010-6
The RocketPort INFINITY 32-Port is a 32 port serial adapter that is compatible with systems having 32 or 64 bit 3.3 volt PCI and PCI-X expansion slots. The low profile low profile design makes these products suitable for use in standard servers and 2U rack mounted servers. The product provides software selectable support for RS-232/RS422/RS485 serial communications and data transmission speeds of up to 921Kbps. Serial connections are made utilizing an external interface purchased separately. All RocketPort Infinity products are designed to comply with the RoHS directives and utilize the Unity ASIC that takes full advantage of the increased 66 Mhz BUS speed available on PCI-X servers.

$851.99
1 In-Stock*
StarTech.com 4 Port RS232 PCI Serial Card Adapter with Power Output

PCI-X - 4 x DB-9 Male RS-232 Serial - Plug-in Card

Quick Info Web ID: 1022377110 Mfr. Part: PCI4S954PW
Add 4 RS232 serial ports with 5V or 12V selectable power output to your computer, through a PCI slotThe PCI4S954PW 4-Port PCI Serial Card (with Power Output) turns a PCI slot into 4 RS232 (DB9) serial connections and enables compatible devices to draw power from the serial ports.Suitable for many RS232-powered serial applications, this PCI serial card offers a selectable 5V or 12V power option, capable of power output using pin 1, 4, 8 or 9, which enables you to configure the card to suit the requirements of your powered RS232 devices.A flexible solution for adding serial ports to full-sized, or small form factor systems, the 4-port serial card includes both low and full profile brackets while the included breakout cable helps to avoid cluttered connections.Backed by a StarTech.com Lifetime warranty and free lifetime technical support.

$143.94
479 In-Stock*
StarTech.com 4 Port PCI Express (PCIe) RS232 Serial Card w/ Power Output and ESD Protection

PCI Express x1 - 4 x DB-9 Male Serial Via Cable - Plug-in Card

Quick Info Web ID: 1025214757 Mfr. Part: PEX4S553S
Add four ESD-Protected RS232 ports, with 5V or 12V selectable power output through a PCI Express slot. The PEX4S553S 4-Port PCI Express Serial Card lets you add four ESD-Protected RS232 ports, with 5V or 12V selectable power output through a PCI Express slot. Ideal for industrial environments, this 4-port serial card offers built-in 15KV ESD-protection which helps prevent damage to connected devices in the event of line surges and electro-static discharge. Plus, for devices that require additional power, the multi-port serial card also has a jumper-selectable 5V or 12V power output option (pin 9) using either the PCIe bus, or through an SP4 connection to your power supply. For added flexibility, the power output can be enabled or disabled on a per-port basis so you choose which ports supply power. This versatile RS232 card supports high-speed serial data rates up to 921.6 Kbps, and is compatible with a broad range of operating systems. To maximize installation options, the 4-port card is equipped with a standard profile bracket and includes an optional low profile bracket for installation in small form factor computers. To avoid crowded connections that can occur with fixed/static ports, the card uses a break-out cable which turns a single connector on the card into four flexible RS232 serial ports. Backed by a StarTech.com lifetime warranty and free lifetime technical support.

$176.73
463 In-Stock*
StarTech.com 4 Port PCI RS422 RS485 Serial Adapter Card

4 x DB-9 Male RS-422/485 Serial Via Cable - Plug-in Card

Quick Info Web ID: 10963509 Mfr. Part: PCI4S422DB9
This 4 Port PCI RS422 RS485 Serial Adapter Card lets you add four high speed RS422/RS485 Serial interface ports to your system, and features on-card jumpers that let you configure each port as full or half duplex as needed. The card comes with a breakout style cable that provides four DB9 connectors for use with common RS422/RS485 serial peripherals in virtually any operating environment (point of sale, security, industrial, etc.). The card offers a 32-Byte FIFO buffer and supports data transfer speeds reaching up to 230.4 Kbps.Intended as a permanent serial solution.

$90.17
45 In-Stock*
StarTech.com 1S1P 54mm ExpressCard Serial Parallel Combo Card with 16550 UART

ExpressCard - 1 x DB-9 Female RS-232 Serial

Quick Info Web ID: 1020387434 Mfr. Part: EC1S1P55254
The EC1S1P55254 1S1P 54mm Parallel/Serial ExpressCard (16550 UART) adds 1 RS232 serial, and 1 IEEE 1284 Parallel port to your laptop, using an available 54mm ExpressCard slot.This high-performance Serial/Parallel adapter with included breakout cable uses the full 54mm form factor for a perfect fit and long life durability. Supporting RS232 speeds up to 128Kbps and parallel rates up to 1.5Mbps, the serial/parallel adapter features a native chipset that delivers reliability, performance, and lower CPU loads versus conventional bridge-chip cards.Designed for use with laptop computers equipped with 54mm ExpressCard slots, this 1S-1P card offers a broad operating system compatibility list that includes Windows, Mac OS X and Linux, for simple integration into almost any system.The adapter also functions as a single port Parallel adapter if used without the included breakout cable.Backed by a StarTech.com Lifetime warranty and free lifetime technical support.

$62.32
26 In-Stock*
StarTech.com 4 Port PCI RS232 Serial Adapter Card High Speed 16950 cable included

4 x DB-9 Male RS-232 Serial - Plug-in Card - DB-9 Male 8.3 Fan-out Cable

Quick Info Web ID: 10240496 Mfr. Part: PCI4S9503V
This high speed Serial PCI Card uses a 16 Byte buffer simultaneously in both transmit and receive channels, reducing the number of CPU interrupts while improving system performance._x000D_ The card lets you connect up to 4 RS-232 serial devices to the host computer, and can be installed in either a 3.3V or 5V PCI/PCI-X slot._x000D_ Ideally suited to industrial applications, the buffered Serial PCI card is compatible with a broad range of operating systems, including Windows, DOS, Linux, and Unix operating environments._x000D_ Backed by Lifetime Warranty.

$165.89
10 In-Stock*
StarTech.com 2 Port 54mm ExpressCard RS232 Serial Adapter Card - 16550 UART

ExpressCard - 2 x DB-9 Male RS-232 Serial - Plug-in Module

Quick Info Web ID: 1020387436 Mfr. Part: EC2S55254
The EC2S55254 2-Port Serial ExpressCard (54mm) adds 2 RS232 serial ports to your laptop using an available 54mm ExpressCard slot. The adapter features a native chipset that provides reliability and performance improvements, as well as lower CPU loads and power consumption, over conventional bridge-chip serial ExpressCards.This high-performance RS232 ExpressCard adapter includes a breakout cable that uses the full 54mm ExpressCard form factor, for a perfect fit and additional durability.Designed for use with laptop computers that are equipped with 54mm ExpressCard slots, this 2-Port serial ExpressCard offers a broad operating system compatibility list that includes Windows®, Mac OS X and Linux, for simple integration into almost any system.Backed by a StarTech.com Lifetime warranty and free lifetime technical support.

$104.65
3 In-Stock*
StarTech.com 4 Port CardBus RS232 Serial Laptop PC Adapter Card - 16950

CardBus - 4 x DB-9 Male RS-232 Serial Via Cable - Hot-pluggable

Quick Info Web ID: 1010690947 Mfr. Part: CB4S950
Connect serial devices to any notebook CardBus PCMCIA slot! Featuring a maximum data transfer rate of up to 115.2Kbps, CB4S950 lets you add four DB9 RS232 ports, ensuring flawless connectivity with your serial peripherals.

$193.69
2 In-Stock*
SYBA Multimedia 4 Serial Ports PCI-e x1 Controller Card

PCI Express x1 - 4 x DB-9 RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1025889270 Mfr. Part: SI-PEX15038
Fan-out cable design for easy access to all 4 Serial ports.

$43.59
No Stock
SIIG DP CyberSerial 2S PCI

Universal PCI - 2 x DB-9 RS-232 Serial - Plug-in Card

Quick Info Web ID: 1025528321 Mfr. Part: JJ-P20211-S7
SIIG's DP CyberSerial 2S PCI adds 2 high-speed 16550 UART serial ports (9-pin) to your desktop computer. Each serial port can be configured as either standard 5V or 12V power output for connecting serial devices that require power such as 56K V.90 external modems, ISDN terminal adapters, PDAs, digital cameras, label printers and more. With a spare low profile bracket, this dual profile adapter card can be installed into standard height or low profile chassis system, offering the utmost flexibility in system installations.

$60.93
No Stock
IO Crest PCI-Express Serial Card

PCI Express 2.0 x1 - 2 x DB-9 Male RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1029765401 Mfr. Part: SI-PEX15043
This IO Crest SI-PEX15043, XR17V358 series Multi-I/O PCI-E controller cards are high performance RS-232 serial interface controllers for home and industrial users. They are compatible with industrial standard 16C550 UART, which conveniently provide a low cost connection platform for industrial machines, POS machines, external modems, mice, and etc... IO Crest 2-port RS232 Serial PCI-Express Card, DB9 Female Panel Mountable Field Terminator Adapters, Exar Chipset

$71.53
No Stock
SYBA Multimedia 4-port PCIe Serial Card

PCI Express 2.0 x1 - 4 x RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1029320242 Mfr. Part: SI-PEX15042
The XR17V358 series Multi-I/O PCI-Express controller cards are the high performance RS-232 serial interface controller for home and industrial users. They are compatible with industrial standard 16C550 UART, which provide a low cost connection platform for industrial machines, POS machines, external modems, mice, etc.

$80.76
No Stock
SYBA Multimedia 8-Port RS-232 Serial PCI-Express, Revision 2.0; with Exar Chipset

PCI Express 2.0 x1 - 8 x DB-9 Male RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1028083156 Mfr. Part: SI-PEX15041
The XR17V358 series Multi-I/O PCI-Express controller cards are the high performance RS-232 serial interface controller for home and industrial users. They are compatible with industrial standard 16C550 UART, which provide a low cost connection platform for industrial machines, POS machines, external modems, mice, etc.

$80.85
No Stock
SERVERAID M5100 CACHING ENABLER FO 447

Web ID: 1029024454 Mfr. Part: 90Y4447

$779.89
No Stock
SERVERAID M5225-2GB SAS/SATA CONTROLLER FOR SYSTEM X

Web ID: 1029024838 Mfr. Part: 00AE938

$1,120.56
No Stock
Intashield IS-400 4-port Multiport Serial Adapter

Universal PCI - 4 x DB-9 RS-232 Serial - Plug-in Card

Quick Info Web ID: 1025479453 Mfr. Part: IS-400
This card provides 4 industry standard RS232 serial COM ports in a single PCI slot. A fully moulded quad cable terminated in 9 pin male D plug ensures reliable connection.As PCI is fully Plug and Play compatible your BIOS and operating system will automatically configure the card ensuring conflict free installation.Choose between standard height and low profile options.

$116.94
No Stock
Intashield IS-450 4-port Multiport Serial Adapter

Universal PCI - 4 x DB-9 RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1025479442 Mfr. Part: IS-450
This card provides 4 industry standard RS232 serial COM ports in a single PCI slot. A fully moulded quad cable terminated in 9 pin male D plug ensures reliable connection.As PCI is fully Plug and Play compatible your BIOS and operating system will automatically configure the card ensuring conflict free installation.Choose between standard height and low profile options.

$132.20
No Stock
Intashield IX-400 4-port Multiport Serial Adapter

PCI Express x1 - 4 x DB-9 Male RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1025479449 Mfr. Part: IX-400
This card provides 4 industry standard 9 pin RS232 serial COM ports in a single PCI Express slot. As PCI Express is fully Plug and Play compatible your BIOS and operating system will automatically configure the card ensuring conflict free installation. Choose between standard height and low profile options.

$140.48
No Stock
Intashield IX-450 4-port Multiport Serial Adapter

PCI Express x1 - 4 x DB-9 Male RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1025479450 Mfr. Part: IX-450
This card provides 4 industry standard 9 pin RS232 serial COM ports in a single PCI Express slot. As PCI Express is fully Plug and Play compatible your BIOS and operating system will automatically configure the card ensuring conflict free installation. Choose between standard height and low profile options.

$140.48
No Stock
Black Box Low-Profile PCI Card, 16850 UART, Dual-Port, RS-232/422/485

PCI - 2 x DB-9 Male RS-232/422/485 Serial Via Cable - Half-length Plug-in Card

Quick Info Web ID: 1026881559 Mfr. Part: IC187C-LP
Quick Facts The small but speedy PCI card for your network. Fit in the PCI slots of newer, slimmer computers. The 16850 UART eliminates data bottlenecks and enables your CPU's onboard serial ports to achieve 460.8-kbps data rates. Guaranteed for life! Further Details The dual-port card connects up to 62 RS-485 devices to your CPU. RS-485 cards can capture data from peripherals in a multidrop network. They also have an autoenable circuit for enabling the RS-485 transmitter during data transmission. Support all PCI interrupts. Universal bus (5-V or 3.3-V) operation.

$401.26
No Stock
Black Box Async PCI Express Card, Serial 2-Port, RS-232/422/485

PCI Express - Half-length Plug-in Card

Quick Info Web ID: 1026881766 Mfr. Part: IC983C
Quick Facts Provides two serial ports. Configure ports for RS-232, RS-422, or RS-485. Uses 16C950 UARTs with 128-byte Tx/Rx FIFOs for data rates to 921.6 kbps. Fully compatible with legacy 16550 UARTs. Guaranteed for life! Further Details Passes all modem signals in RS-232 mode. In RS-485 modes, the card's transmitter is enabled in hardware, eliminating software control. Use in low-profile PCI Express slots. Includes a 36" (91.4 cm) cable that terminates to two DB9 male connectors.

$469.39
No Stock
Black Box 8-Port RS-232 PCI Card, 16554 UART

PCI - 8 x DB-25 Male RS-232 Serial - Plug-in Card

Quick Info Web ID: 1026881340 Mfr. Part: IC142C
Quick Facts Provides up to 16 PCI bus links for communication servers, point-of-sale (POS) systems, and other RS-232 devices. Supports all PCI interrupts for more IRQs and fewer installation problems! Further Details Achieves 115.12-kbps sustained data rates. Compatible with all Windows® operating systems (OSs) as well as Linux® and QNX. Includes drivers for Windows diagnostics and other enhanced features. Includes an ISP port for IRQ sharing.

$550.49
No Stock
Black Box RS-232 PCI Card, 8-Port, Low Profile, 16854 UART

PCI - 8 x DB-25 Male RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1026882130 Mfr. Part: IC190C-R2
Quick Facts Supports all PCI interrupts. You have more IRQs and fewer installation problems! Universal bus compatible-operates in 5-V or 3.3-V signaling level systems! Further Details Provides up to 8 PCI bus links for communication servers, point-of-sale (POS) systems, and other RS-232 devices. 16854 UART eliminates data bottlenecks and enables your CPU's onboard serial ports to achieve 460.8-kbps sustained data rates. Compatible with all Windows® operating systems (OSs) as well as Linux® and QNX. Includes drivers for Windows diagnostics and other enhanced features. Includes an ISP port for IRQ sharing. Features a low profile.

$750.43
No Stock
Black Box RS-232 PCI Card, 16-Port, 16854 UART

PCI - 16 x DB-25 Male RS-232 Serial Via Cable - Plug-in Card

Quick Info Web ID: 1026881453 Mfr. Part: IC1600C
Quick Facts Supports all PCI interrupts. You have more IRQs and fewer installation problems! Universal bus compatible-operates in 5-V or 3.3-V signaling level systems! Further Details Provides up to 16 PCI bus links for communication servers, point-of-sale (POS) systems, and other RS-232 devices. 16854 UART eliminates data bottlenecks and enables your CPU's onboard serial ports to achieve 460.8-kbps sustained data rates. Compatible with all Windows® operating systems (OSs) as well as Linux® and QNX. Includes drivers for Windows diagnostics and other enhanced features. Includes an ISP port for IRQ sharing.

$940.16
No Stock

The data and images on this website have been subjected to numerous control mechanisms to ensure its' accuracy. FrontierPC.com will use best efforts to maintain its accuracy. However, if at any time the data or images provided are incorrectly priced or below fair market value or availability has substantially changed or image or descriptions contain inaccuracies, FrontierPC.com shall not be held responsible or liable, furthermore FrontierPC.com reserves the right to reject any orders placed based on this erroneous information. Copyright 2001-2014 FrontierPC.com Computer Inc., Frontier PC Canada, Frontier Computer, Toronto, Vancouver, Calgary, Halifax. All Rights Reserved.