NOTE: will not charge phones or tablets. If used on a mobile phone, it only supports the OTG function. Applicable: Add peripherals to your host device. as keyboards, mouse, flash drives Format must be FAT32, external hard drives, USB card readers, USB ethernet adapter, game controllers. Advantage: Micro female port provide power for USB peripherals. Make sure your device’s battery will not run out as quickly as other ordinary OTG cables. Expansion: Otg cable for fire stick compatible with the most popular streaming and media devices.( NOT 1ST GEN sticks ). Package: 2 Pack fire stick usb adapter. Please confirm your device supports OTG function before bidding.