This is the DC Power Right Angle Male Solder Connector - 2.5mm I.D. - 5.5mm O.D. While many connectors carry power in addition to data, some connectors are used specifically to provide power connections to devices. Direct Current (DC) electrical power connectors are typically connected to various power supplies for laptop computers, small televisions and many other electronic devices. This male barrel connector, or “plug”, has a 2.5mm inner diameter and 5.5mm outer diameter. It is housed in a Molded strain relief plastic handle, for protective flexibility. Although there are multiple methods of attaching the plug to the end of the wire, it’s also possible to get plugs that come pre-attached to a cable. For more information on our products please contact our customer service department at 888-519-9505 For all your cable and connector needs choose Show Me Cables.