Slim and stylish design; Size: 85×48×12mm. * 4 SuperSpeed USB 3.0 ports support data transfer rates of up to 5Gbps. (Note: actual rate will depend on the capability of your device.) Backward compatible with USB 2.0 / 1.1. * 4 USB 3.0 ports with built-in surge protector; Smart chip power management allows devices to communicate idle states and latency tolerance for progressively lower power states and subsequently increased performance and power efficiency. * Supports Plug and Play and hot swapping. No installation of drivers required for Windows XP / Vista / 7 / 8 or Mac OS X 10.2 and above. * Package includes: 1 USB 3.0 Hub, 1 5V / 2.5A power adapter, 1 USB 3.0 cable (Approx. 3ft), user manual. Free lifetime technical support and 18-month manufacturer"s warranty.