The Seagate Exos X20 is an 20TB, 3.5-inch enterprise-class hard drive with a 7,200 RPM spindle speed, a SATA 6Gb/s interface, and a 256MB cache. It features a helium-sealed design for power efficiency and advanced data protection, with a workload rating of up to 550TB per year and a Mean Time Between Failures (MTBF) of 2.5 million hours. The drive also includes standard 512e/4Kn formatting and digital environmental sensors for monitoring.

Drives are low usage recertified with an average of 24TB/yr usage compared to the workload rating of up to 550TB per year.