This is a 2m USB A 3.0 male to male black cable. It allows your standard USB A 3.0 equipped laptop, PC, or USB charger to connect to any USB A 3.0 equipped device, such as a mouse, keyboard, thumb drive, or external hard drive. The USB A 3.0connector also grants backwards compatibility to any USB A 2.0 or USB A 1.x equipped device. Our cables are backed by a 3 year warranty and are guaranteed to work the first time.