Lenovo 4XB0G88734 Thinkserver G5 2.5 600gb 10k Enterprise, Capacity 600 GB, Form Factor 2.5", Interface 1 x SAS 12 Gb/s, Spindle Speed 10000 rpm, Drive Transfer Rate 1.2 GBps (external), Compatible Bays 1 x 2.5" - hot-swap. For ThinkServer, Lenovo offers a choice of the industry’s most trusted SATA or SAS hard-disk drives as well as blazing-fast solid-state drive in various capacities that are tested for durability.