Glyph BlackBox Mobile 1TB Portable Hard Drive Small form factor for portability USB 3.0 connectivity Up to triple the speed of USB 2.0 Bus-powered, no outlet required 5400 RPM rotational speed BlackBox mobile hard drive USB 3.0 cable 500GB 1TB 2TB Windows Vista and above Mac OS X 10.4 and above USB 3.0 0.6 x 3.2 x 4.7 16 x 79 x 120 mm