Lenovo 4XB0K12340 Thinkserver, Capacity 300GB, Spindle Speed (rpm) 10000, Drive Interface 12Gb/s SAS, Internal Drive, Form Factor 2.5", Hot Swappable, Compatibility Lenovo ThinkServer TS460 Server. This is a 300GB ThinkServer Gen 5 SAS 12Gb/s 10K RPM 2.5" Enterprise Hot Swap Hard Drive with 3.5" Tray.