SanDisk X400 256 GB

A 256GB M.2 2280 SSD on the SATA interface. Sequential throughput tops out at 550 MB/s reads and 520 MB/s writes. At roughly $0.33 per gigabyte it sits in the mid-range tier. SATA throughput caps near 550 MB/s — fine for game libraries and backups, slower for heavy scratch work.

Expect to pay around $85.00, which lands it among mid-range options. Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. SanDisk backs the product through its standard warranty channels; check the listing for region-specific terms. The full specification sheet below breaks out every listed detail, and the compatibility checker flags conflicts with parts already in your build.