PremiumCord USB Adaptor Cable USB A / Female + USB A / Male > Micro USB / OTG Male USB OTG (on the go) compatible. Suitable for connecting storage devices to OTG compatible devices such as smartphones Connectors: USB Female, Micro USB Male, Micro USB Female The USB adapter cable allows direct data transfer between two devices without a PC Can connect USB keyboard, mouse, flash disk or other USB peripherals to mobile phones via this adapter. - OTG cable with independent micro USB power supply. - You can charge your mobile phone and the power supply via micro USB port at the same time