Seagate ST18000NM002J 18TB 7200 RPM SATA 6.0Gb/s 256MB 3.5in internal hard drive

18 TB Enterprise Drive for Servers and NAS

The Seagate Exos X18 ST18000NM002J delivers 18 TB of storage in a 3.5 inch form factor. It uses a SATA 6.0 Gb/s interface spinning at 7200 RPM with a 256 MB cache. CMR recording technology ensures consistent performance for enterprise servers, NAS appliances and workstation computers. The helium-sealed design supports 24/7 operation in multi-drive environments.

Helium Sealing Lowers Heat and Noise

Helium sealing reduces internal turbulence so the drive runs cooler and quieter than conventional air-filled units at the same spindle speed. The 7200 RPM motor sustains a data transfer rate up to 270 MB/s while maintaining enterprise-class reliability. Power draw stays predictable during continuous read and write workloads typical of backup and archiving tasks. Hot-swap support allows replacement without system downtime.

Fits Standard 3.5 Inch Bays and SATA Controllers

The 3.5 inch form factor mounts in any standard drive bay or hot-swap chassis using the SATA 6.0 Gb/s interface. No special controller or proprietary firmware is required; the dual-labelled drive works in HP and non-HP systems alike. The 512e sector format maintains compatibility with legacy operating systems and RAID controllers. This frees up M.2 slots for faster caching or boot devices.