The StarTech.com USB Power Cables make it easier to power 5V DC devices that have a barrel power connectors. You can power or charge the devices through an available USB port on your laptop or desktop computer.
These USB power cables could save you having to carry around a separate wall adaptor in order to power or charge your 5V devices, such as external hard drives, streaming media players, and Bluetooth speakers. Available with type H (3.4/1.3mm), M (5.5/2.1mm), and N (5.5/2.5mm) barrels.
Backed by the StarTech.com lifetime warranty.