Lenovo SAS Drives (00WG690), Capacity 600GB, Interface Serial Attached SCSI 3 (SAS), Internal, FF 2.5 inches, 10000RPM, Data Transfer Rate 1.2GB/s. This 10K RPM 12 Gb/s 2.5-inch Hot-Swap SAS drive offers the highest performance. It has outstanding reliability that enables operation in RAID environments without compromising application performance or availability.