XINTE Real Time FPV AV Transmitter Connecting Mini Cable USB to AV Mini Cable For GOPRO3 HERO3 Camera package included: 1pc new -Specially for Gopro 3 -Lateral plug, greatly reduce the GoPro side space occupied USB port-GoPro3, AV signal to the output device AV output signal does not require any power supply or a conversion circuit -Taking the 5V from UBEC GoPro uninterruptible power -Cord valuables, length 20 cm -Light weight (3.7G) Design for the GoPro HERO3 camera output video and charging, this USB cable has 5V external power supply input and video output capabilities. Or use the BEC charge (black version GoPro HERO3 can only use batteries to power the GoPro HERO3, silver version without batteries with a BEC power supply switch on). To use charging or power, use the power supply input 3A/5V UBEC (do not use 5V to take power, current is not enough)