Seagate BarraCuda 160 GB (ST3160318AS-FFP)

This is a 160GB 3.5" HDD on the SATA interface. Sequential throughput tops out at 550 MB/s reads and 520 MB/s writes, backed by 8MB of cache. At roughly $0.18 per gigabyte it sits in the budget tier. SATA throughput caps near 550 MB/s — fine for game libraries and backups, slower for heavy scratch work.

At $29.00 it sits in the budget drive bracket. Use the PlanMyPC system builder to verify it works alongside your other components and to keep a running tally of the cost. Warranty coverage follows Seagate's standard policy — confirm regional terms on the listing.