Seagate IronWolf NAS 4 TB

This is a 4000GB 3.5" HDD on the SATA interface. Sequential throughput reaches 550 MB/s reads and 520 MB/s writes, backed by 64MB of cache. SATA throughput caps near 550 MB/s — fine for game libraries and backups, slower for heavy scratch work. Drop it into the PlanMyPC builder to check compatibility with the rest of your parts and compare current drive prices across retailers.

Support and warranty service run through Seagate, with terms that vary by region. Every published spec is tabulated below, and compatibility against your current part list is checked automatically. 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.