USB interface support USB devices such as USB flash disk, USB mouse, USB keyboard and etc.Suitable but not limited for Galaxy S2, Galaxy Note, Galaxy S3/S4, Galaxy Tab3 8.0, Xperla NX-02D, Xperla acro HDIS12S. REGZA Phone-TO1D, and S-series TabletDraws power only from OTG port, current for USB devices is limited to host capability With USB2.0 4-Port Hub, for Mouse, Keyboard, U disk, Camera, Printer and so on. Easy plug and play installation device, no external power needed No driver needed for Android and PC with USBSupports supply extra power through -USB port if necessary.(Please take note: Extra power only charge for accessories such as mouse keyboard etc,can not charge for smartphone or tablet)Colour: Black material: plasticSize: 20cmPackage Contents: 1 * -USB cableOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.