Seagate Enterprise Capacity 4 TB

This is a 4000GB 3.5" HDD on the SATA interface. At roughly $0.05 per gigabyte it sits in the high-end tier. Sequential throughput reaches 550 MB/s reads and 520 MB/s writes, backed by 128MB of cache. SATA throughput caps near 550 MB/s — fine for game libraries and backups, slower for heavy scratch work.

Expect to pay around $215.85, which lands it among high-end options. PlanMyPC's builder flags compatibility problems automatically and adds the part's price to your build total. 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.