HGST Deskstar 3.5-Inch 2TB 7200RPM SATA III 6 Gbps 64 MB Cache Internal Hard Drive (0F12115) Designed to leverage new platforms and modern operating systems 7200 RPM, 64MB Cache and SATA III 6Gbps 2TB Hard Drive Storage Capacity Ec0-Friendly, Halogen-Free Design 2TB Hard Drive Storage Capacity 7200 RPM, 64MB Cache and SATA III 6Gbps Ec0-Friendly, Halogen-Free Design Designed to leverage new platforms and modern operating systems