Seagate ST900MM0128 900 GB

This is a 900GB 2.5" HDD on the SAS 12.0 Gb/s interface. Sequential throughput tops out at 550 MB/s reads and 520 MB/s writes, backed by 128MB of cache. At roughly $0.14 per gigabyte it sits in the high-end tier. Expect to pay around $128.50, which lands it among high-end options.

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. Scroll down for the complete spec table; the builder's compatibility checker will warn you about any conflicts with components you have already picked.