Features‎:‎ 1‎.‎ Portable size‎,‎ Compact‎,‎ light weight design‎,‎ 2‎.‎ Plug and play‎,‎ no driver installation required‎.‎ 3‎.‎ Fully compliant with USB 2.0/ 1.1‎.‎ 4‎.‎ Supports data transfer rate up to 480Mbps‎.‎ 5‎.‎ Expand 3 USB ports supply up to 500mA current per port‎.‎ 6‎.‎ Support downstream wrong signal detection and revert to normal function‎.‎ 7‎.‎ Power consumption‎,‎ low operating temperature so solts and slots without interfere with each other‎.‎ 8‎.‎ Allows simultaneous operation of up to 3 separate devices all attached to a single USB port‎.‎ 9‎.‎ USB A male connector can be rotated 180 degrees‎,‎ easily meeting users' USB orientation angle demands‎.‎ 10‎.‎ Supports Win ME/ Vista/ XP/ 2000/Win 7 Mac OS 10.4‎.‎5/ Linux 2.4‎.‎1 and so on‎.‎ Specifications‎:‎ Device Type‎:‎ 3 Ports USB Hub Interface Type‎:‎ USB 2.0 Dimension‎:‎ 1.9" L x 0.7" W x 1.7" H ‎(‎49 x 19 x 44 mm‎)‎ Feature‎:‎ Rotary design Color‎:‎White