MarchMore Right Angle USB 2.0 Micro Male to USB Female Host OTG Adapter for SamSung i9100 i9300 100% Brand New, high quality. The Micro USB-B plug is connect OTG device. USB A type female is to connect USB pen disk, usb keyboard. The flash memory dish format must be FAT32 if you connect the storage. Compatible for: Samsung S2 i9100 i9220 i9250 i9300 Motorola XOOM Nokia N900 N810 GPS MP3 MP4 PAD MOBILE PHONE PMP and more use It's a standard USB Micro-B Host adapter, need your machine support usb host OTG function. It can use mouse, keyboard, usb disk and more......