Seagate Constellation ES 500 GB

This is a 500GB 3.5" HDD on the SAS 6.0 Gb/s interface. At roughly $0.18 per gigabyte it sits in the mid-range tier. Sequential throughput tops out at 550 MB/s reads and 520 MB/s writes, backed by 16MB of cache. At $89.99 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. Seagate 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.