This is a 5-pack of 1m USB 3.1 male to male black cables. Each allows your USB 3.1 (C) equipped MacBook®, laptop or PC to connect to any USB 3.1 (C) equipped device, such as a smart phone, tablet, or external hard drive. Our cables are backed by a 3 year warranty and are guaranteed to work the first time.This is a 5-pack of 1m USB 3.1 male to male black cables. Each allows your USB 3.1 (C) equipped MacBook®, laptop or PC to connect to any USB 3.1 (C) equipped device, such as a smart phone, tablet, or external hard drive. Our cables are backed by a 3 year warranty and are guaranteed to work the first time.