Western Digital Caviar Blue 320 GB

A 320GB 3.5" HDD on the SATA interface. At roughly $0.22 per gigabyte it sits in the mid-range tier. Sequential throughput reaches 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.

At $70.00 it sits in the mid-range drive bracket. Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. Western Digital 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.