Toshiba MK6476GSX 640 GB

A 640GB 2.5" HDD on the SATA interface. Sequential throughput tops out at 550 MB/s reads and 520 MB/s writes, backed by 8MB of cache. SATA throughput caps near 550 MB/s — fine for game libraries and backups, slower for heavy scratch work. Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing.

Toshiba 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. If this drive is not quite the right fit, the category page lists close alternatives at similar prices for a quick side-by-side comparison.