Lenovo Sas 3.5in G2hs 512e 00YK336, Hard drive hot-swap - nearline, Capacity 10 TB, FF 3.5", Interface SAS 12Gb/s, 1 x SAS 12 Gb/s, Drive Transfer Rate 1.2 GBps (external), Spindle Speed 7200 rpm. Lenovo IBM 10TB 7200 RPM 12Gbps NearLine (NL) Serial Attached SCSI (SAS) 3.5 inch large form factor (LFF) Generation 2 Hot Swap (G2HS) 512e Hard Disk Drive.