4 USB 3.0 super ports supply you with transfer rates of up to 5Gbps. Connects to , printers, digital , camcorders, speakers, mice, keyboard, external drives, MP3 players and more. Please note that USB hub is for data transmission, not for charging. When the hub is used as a charging device, the may be slow, or will not work. Features - Color: As shown. - Material: Plastic. - Size: 7.6x4x1.1cm / 3x1.6x0.4inch. - Compliant with USB version:1.1/2.0/3.0. - USB cable length: 150mm. - System requirements: XP, vista, , (10. above). - Supports High-Speed(5G Mbps), Full-speed(480Mbps) and Low-speed(12Mbps) USB device profiles. - When power adaptor connected, Per-port Over- and protection (Excluding power). - When power adaptor connected, Supplies USB bus power(Excluding power). - Can be driven 500Gmobile hard disk without external power supply. - Backflow prevention circuit design, in order to prevent electric flow back to the device. - Automatic switching between and bus-powered mode Supports . - Connects to , printers, digital , camcorders, speakers, mice, keyboard, external drives, MP3 players and more. Package list: 1 x 4-Port USB 3.0 Hub 5Gbps Portable Compact for PC Laptop Notebook Desktop