Western Digital RE4 250 GB

A 250GB 3.5" HDD on the SATA interface. Sequential throughput reaches 550 MB/s reads and 520 MB/s writes, backed by 64MB of cache. At roughly $0.2 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.

Its $50.00 price tag places it squarely in mid-range territory. PlanMyPC's builder flags compatibility problems automatically and adds the part's price to your build total. Warranty coverage follows Western Digital's standard policy — confirm regional terms on the listing. The full specification sheet below breaks out every listed detail, and the compatibility checker flags conflicts with parts already in your build.