The USB2TYPEM2M USB to Type M (55mm) Barrel cable enables you to power an external 5V DC device through an available USB port on your desktop or laptop computer The USB to DC Plug cable offers the perfect solution for mobile applications eliminating the need to carrypack a wall adapter for charging 5V devices Eliminates having to carrystore a power adapter by enabling you to connect devices from a USB port to a DC plug 2-meter cable length overcomes distance restrictions while powering 5V DC devices from an available USB port enabling more versatile device positioning Backed by StarTech lifetime warranty ensuring long-term reliability and performance Convert a USB A port into a type M power connector for powering external drives or mobile peripherals through an available USB port on your desktoplaptop 1x USB &39;A&39; Male Connector  1x Type M barrel connector  Molded connectors with strain relief  Aluminum-Mylar Foil with Braided Shielding  Durable PVC constructionCable Colour BlackCable Connector End 1 USB 20Cable Length 2 mForm Factor USB Adaptor CableIn The Box 1 - 2 m USB to Type M Barrel 5V DC Power Cable