Right 90D Angled Micro USB 2.0 B male to USB A female Host OTG adapters for SamSung i9100 i9300 100% Brand New, high quality. 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. 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....