Dell 341-9520 450 GB

This is a 450GB 3.5" HDD on the SAS 3.0 Gb/s interface. Sequential throughput tops out at 550 MB/s reads and 520 MB/s writes, backed by 16MB of cache. Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing.

Support and warranty service run through Dell, with terms that vary by region. Scroll down for the complete spec table; the builder's compatibility checker will warn you about any conflicts with components you have already picked. 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.