2 Pack USB 2.0 OTG Adapter Make sure your device supports OTG function before purchase Micro-B USB HOST OTG Cable, USB version 2.0 Extra USB Micor-B power for devices.Make sure your device's battery will not run out as quickly as other ordinary OTG cables OTG Function Cable, will NOT charge any of your Android smart phone or tablet devices. OTG Cable length 8 inches Compatible with fireSticks Streaming Media Devices Rii and Logitech Keyboards Nintendo Switch SNES NES Classic