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WD 250GB WD BLUE 3D NAND SATA SSD, WDS250G2B0B, Solid State Drive

Solid State Drive

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What is the difference between M.2 SATA and M.2 PCI Express?

This can be confusing but the answer is rather simple:

"M.2" is the physical Interface name of the drive Connector. So both SATA and PCI Express SSD's can be M.2 drives. The main difference is that the SATA versions use SATA Protocol to transmit the data, whereas the PCI Express SSD's use PCI Express technology. PCI Express drives have a much higher potential transfer rate, up to 4GB/s vs 600MB/s for SATA.

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Shared November 6, 2018

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Overview
Hard Drive Capacity / HDD:
250 GB
Hard Drive / Interface Type:
SATA 6 Gb/s
SSD / Read Speed:
550 MBps
SSD / Write Speed:
525 MBps
Max 4KB Random Read:
95k IOPS
Max 4KB Random Write:
81k IOPS
Width:
2.23 Mm
Depth:
22.00 Mm
Height:
80.00 Mm

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