Seagate IronWolf Pro NAS 18 TB

This is a 18000GB 3.5" HDD on the SATA interface. Sequential throughput tops out at 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. PlanMyPC's builder flags compatibility problems automatically and tracks the latest drive deals from multiple stores.

Warranty coverage follows Seagate's standard policy — confirm regional terms on the listing. Scroll down for the complete spec table; the builder's compatibility checker will warn you about any conflicts with components you have already picked. The category page surfaces comparable models near the same price, which makes shortlisting against this drive straightforward.