Seagate Exos X24 SED 20 TB

This is a 20000GB 3.5" HDD on the SATA interface. Sequential throughput reaches 550 MB/s reads and 520 MB/s writes, backed by 512MB of cache. At roughly $0.04 per gigabyte it sits in the premium tier. SATA throughput caps near 550 MB/s — fine for game libraries and backups, slower for heavy scratch work.

At $799.99 it sits in the premium drive bracket. Drop it into the PlanMyPC builder to check compatibility with the rest of your parts and compare current drive prices across retailers. Seagate backs the product through its standard warranty channels; check the listing for region-specific terms.