USB interface supports USB devices such as USB flash drives, USB mice, USB keyboards, and more. Compatible with various devices including Galaxy S2, Galaxy Note, Galaxy S3/S4, Galaxy Tab3 8.0, Xperia NX-02D, Xperia Acro HDIS12S, REGZA Phone-TO1D, and S-series Tablets. Draws power only from the OTG port; current for USB devices is limited by host capability. Equipped with a USB 2.0 4-port hub for connecting mouse, keyboard, U disk, camera, printer, and other USB peripherals. Plug and playno external power or driver installation required for Android and PC with USB support. Supports optional extra power input via Micro-USB port when needed. (Note: Extra power is intended only for accessories such as mice and keyboards; it cannot charge smartphones or tablets.) Color: Black Material: Plastic Size: 20cm Package Contents: 1 x Micro-USB cable Only the items listed above are included; other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm.