Western Digital Caviar Blue 320 GB

This is a 320GB 3.5" HDD on the SATA interface. Sequential throughput tops out at 550 MB/s reads and 520 MB/s writes, backed by 16MB of cache. At roughly $0.22 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 $70.00, which lands it among mid-range options. PlanMyPC's builder flags compatibility problems automatically and tracks the latest drive deals from multiple stores. Warranty coverage follows Western Digital's standard policy — confirm regional terms on the listing. Scroll down for the complete spec table; the builder's compatibility checker will warn you about any conflicts with components you have already picked.