The Connectland Aluminum 3.5" SATA III USB 3.0 External Enclosure is fast USB 3.0 External Enclosure is ideal for any DIY external storage project. Just add a 3.5" SATA I, II, or III hard drive. The transfer rate is up to 5 Gbps via USB 3.0 and 480mb/sec via USB 2.0 connection. Supporting OS: Windows XP / VISTA / 7, 8, 8.1 and Mac OSX