Origin Storage HDD 450GB 3.5in SAS 15000RPM - Recertified in Hot Swap Caddy, 450 GB, 15000 RPM, 16 MB, 2.5", SAS Origin Storage HDD 450GB 3.5in SAS 15000RPM - Recertified in Hot Swap Caddy. HDD capacity: 450 GB, HDD speed: 15000 RPM, Storage drive buffer size: 16 MB, HDD size: 2.5", Interface: SAS