* compatible with usb 1.1 and usb 2.0 devices * usb specification 2.0 for data rates up to 480mbps * backward-compatible support for usb 1.1 * approved by usb implementers forum (usb-if) * offers 2 easy-access, top-loading 480mbps ports-perfect for the thumb drives, usb lights, or fans * features 5 horizontally mounted 480mbps ports * transfers your data at up to 480mbps * installs easily with plug-and-play convenience * works seamlessly with all your usb 1.1 and usb 2.0 devices * saves desk space with stackable, slim-line design * supports "hot swapping" of all your usb devices * lowers power consumption for longer battery life * makes power supply optional in laptop applications * lets you monitor port and power status with leds * features over-current detection & safety * includes power supply