90 Degree USB to Video AV Output FPV Cable Power Lead Cord For GoPro HERO 3 100% brand new This is a USB to AV Video FPV cable specially for Gopor Hero 3. It not only has the Video and Audio output from the camera's USB port, but also 5V power DC(BEC) Input to power up your GoPro Hero 3. you can run your Gopro Hero 3 as you like with this cable, You you don't need an internal battery for your GoPro Camera.