Input interface: USB Port x 2 for computer (One computer has access at a time) Output interface: USB Port x 4 for device Support speed up to 480Mbps Micro usb power port 5V ABS Case Includes two 5ft/1.5m USB cables Note:Length from computer to HUB can not surpass 2m Support Windows XP/7/8/10/Vista,MAC OS 8.6 and above Plug and Play, no driver required Dimensions: 105mm x 53mm x 16mm.