... cute animal 4 port usb hub 1.version 1.1/2.0 available 2 Hot Plug & Play 3 OEM services are welcome 4 ... up to 550Ma current per port version 1.1/2.0 availableUse a second generation controllerNo external power supply necessary ... Easy to carrySupply several color optionaStatus shows fashionableextensively compatible with scanner, digital camera,digital vidicon,optical mouse,keyboard ,usb flash disk,etc ...