Dell 1TB 7.2K 6Gbps 2.5'' Enterprise Class SATA Hard Drive with 2.5'' R-Series Tray for PowerEdge R610, R710,T610, T710, R420, R620, R720XD Capacity and Speed: 1TB 7.2K Transfer Rate: 6Gbps Interface: SATA Class: Enterprise Form: 2.5 Inch