The GoPro Combo Cable connects to your HERO3 cameras USB port. It supports composite video out, 1/8" (3.5 mm) mic input and USB connectivity.
Specifications :
Compatibility GoPro HERO3 Cable Type Combo cable supports USB to composite video out, 1/8" (3.5 mm) mic input and USB connectivity Cable Length Not specified by manufacturer Weight 2.89 oz (82 g)
Reviews GoPro Combo Cable