Lenovo 7XB7A00046 Thinksystem Hard Drive, Capacity 10TB, Form Factor 3.5", Interface SAS 12Gb/s, Drive Transfer Rate 1.2 GBps (external), Spindle Speed 7200 rpm, Interface 1 x SAS 12 Gb/s. These drives feature enterprise class reliability with the power and performance efficiency that make them ideal for capacity optimized, 24x7 multi-drive server and storage environments.