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?&lt;br /&gt;&lt;br /&gt;This 2m USB power cable makes it easier to power 5V DC devices that have a Type M (OD: 5.5mm ID:2.1mm) barrel power connector. You can power or charge the devices through an available USB port on your laptop or desktop computer.&lt;br /&gt;&lt;br /&gt;Expertly designed and constructed of high-quality materials the StarTech.com USB2TYPEM2M power cable is backed by our lifetime warranty.&lt;br /&gt;&lt;br /&gt;&lt;b&gt;The StarTech.com Advantage&lt;/b&gt;&lt;br /&gt;- Guaranteed reliability