Brand: StarTech.com. MPN: USB2TYPEH. Tired of having to carry around a separate wall adapter in order to power or charge your 5V devices such as certain external hard drives streaming media players and Bluetooth® speakers?This USB power cable makes it easier to power 5V DC devices that have a Type H (OD: 3.4mm ID:1.3mm) barrel power connector. You can power or charge the devices through an available USB port on your laptop or desktop computer.Expertly designed and constructed of high-quality materials the StarTech.com USB2TYPEH power cable is backed by our lifetime warranty. More from the Manufacturer.