Seagate ST3146356SS-IM 146 GB

This is a 146GB 3.5" HDD on the SAS 3.0 Gb/s interface. At roughly $0.38 per gigabyte it sits in the mid-range tier. Sequential throughput reaches 550 MB/s reads and 520 MB/s writes, backed by 16MB of cache. At $55.00 it sits in the mid-range drive bracket.

PlanMyPC's builder flags compatibility problems automatically and tracks the latest drive deals from multiple stores. Warranty coverage follows Seagate'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. If this drive is not quite the right fit, the category page lists close alternatives at similar prices for a quick side-by-side comparison.