REMAX USA OTG Micro-USB RA-OTG ( ON THE GO) is used to connect external devices to your phone, tablet so that your phone can read external devices’ contents. Connect U disk, mouse, keyboard to your phone. Very light and small, convenient to carry, just 20*15*6MM 10000 times test, very durable. PRODUCT NAME: Remax micro USB OTG adapter CONNECTOR A: USB 2.0 female CONNECTOR B: micro USB 2.0 5 pins SIZE:20*15*6MM COLOR: pink, gold FUNCTION: Read external storage device’s contents, connect a mouse, keyboard to your phone, tablet. Compatible with Samsung, HTC, Sony, Huawei, Xiaomi, and most android phones.