Western Digital RE 4 TB

A 4000GB 3.5" HDD on the SAS 6.0 Gb/s interface. At roughly $0.04 per gigabyte it sits in the high-end tier. Sequential throughput tops out at 550 MB/s reads and 520 MB/s writes, backed by 32MB of cache. Expect to pay around $149.00, which lands it among high-end options.

Drop it into the PlanMyPC builder to check compatibility with the rest of your parts and compare current drive prices across retailers. 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.