About this item[USB Multiport]Our 4-in-1 multi-ports USB 3.0 Splitter fit for One Laptop PC/DVD Burner, portable hard disk, ,computer radiator, U disk,keyboard and mouse,printer,card reader and more other compatiable devices.[Super Speed]USB 3.0 splitter up to 5Gbps, Super speed data transmission. Up to 5Gbps transmission speed. But please note that charging speed is very slowly, don't recommend to charge power by USB splitter.faster transmission speed than USB 2.0 and USB 1.0.[Extensive compatibility]Our 4ports USB Hub Adapter Compatiable with WIN/VISTA/MAC computer operate system.[Driver free]: Plug in and use,No driver installation required.No need extra external power. Powerful running capacity supports 2T hard disk at no extra external power.