Seagate IronWolf Pro 12 TB

A 12000GB 3.5" HDD on the SATA interface. Sequential throughput reaches 550 MB/s reads and 520 MB/s writes, backed by 256MB of cache. SATA throughput caps near 550 MB/s — fine for game libraries and backups, slower for heavy scratch work. Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing.

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. Not sold on this particular drive? Browse the category listing to line it up against similarly priced alternatives.