Seagate EXOS 16TB 6Gb/s SATA 7200RPM 256MB 512e 4KN Bare

Seagate EXOS X18 18TB 6Gb/s SATA 7.2K RPM 256MB 512e/4Kn 3.5"

Seagate Part# ST18000NM000J

Hard Drives - Internal – Hard Drive - 256 MB Buffer - No Wireless LAN - Exos X18 - SATA - SATA/600 - 7200 Spindle Speed (rpm) - Internal - Storage System - Video Surveillance System - 18 TB Storage Capacity - 512e/4Kn Disk ...

Seagate Exos X20 20TB 6Gb/s SATA (512e/4Kn) Hard Disk Drive

Seagate Part# ST20000NM000D

Hard Drives - Internal – Hard Drive - 256 MB Buffer - No Wireless LAN - Exos X20 - SATA - SATA/600 - 7200 Spindle Speed (rpm) - Internal - Storage System - Video Surveillance System - 20 TB Storage Capacity - 285 MB/s Maximum ...