SANOXY USB cable is great for connecting an external hard drive and other devices requiring a micro B connection. Less power usage, faster output. Compatible: New devices or old models with micro usb. You can use this cable for Mac or PC applications. It is also backward compatible so you can use it for devices that are USB 2.0 or 1.1 compliant. Solid, durable, Sturdy Specifications: Connector 1: USB Micro-B Male Connector 2: USB Type A Male What is in the Box: USB A Male to Micro B Cable (3 Feet/0.9 Meters). Premium 3ft Micro USB Cables. Charge and sync with ease. Extra Cables Replace your original 3ft cable and add a couple more for your home, workplace or suitcase. Compatible With: Smartphones, tablets, MP3 players, cameras, hard drives, e-readers, external batteries, handheld game consoles and all other Micro-USB connecting devices This 3 FT cable will give you enough reach so you can use your phone and charge at the same time.