Western Digital Raptor 150 GB

This is a 150GB 3.5" HDD on the SATA interface. Sequential throughput reaches 550 MB/s reads and 520 MB/s writes, backed by 16MB of cache. At roughly $0.99 per gigabyte it sits in the high-end tier. SATA throughput caps near 550 MB/s — fine for game libraries and backups, slower for heavy scratch work.

Its $149.00 price tag places it squarely in high-end territory. Drop it into the PlanMyPC builder to check compatibility with the rest of your parts and fold its price into your running build total. Support and warranty service run through Western Digital, with terms that vary by region.