Description: 4 Ports (output); 1 Port (input) Blue LED indicates power status for each port Easy to setup: Plug & Play and Hot Swappable Enjoy data transfer rates of up to 480Mbps and spend less time syncing Easily add 4 USB 2.0 SuperSpeed ports to your PC, laptops and tablets (including Microsoft Surface, Ultrabooks and MacBook), eliminating the trouble of switching among devices. Designed with a built-in surge protector to keep your devices safe,Individual port Over-Current protection Specification: Operating system: Win95 osR2 / 98SE / Me / 2000 / XP / VISTA, Linux2.4 andMac os8.5 or above Transmission rate: full speed 480Mbps Power supply: USB 5V / 500mA Package Includes: 1PiecexUSB2.0 4 Port USB Hub