Key features adds 3 additional usb 30 ports adds gigabit ethernet network connectivity compact design for ultra portability plug and play enhanced data transfer stability 3 additional usb 30 ports this light and compact gadget adds 3 additional usb 30 ports to your devices for simultaneous use of a variety of usb devices usb 30 supports up to 10x fast data transfer speed as usb 20 also backward compatible with usb 2011 devices gigabit ethernet adapter this light and compact gadget