Hanvex HDX12W 12ft 2.1mm x 5.5mm DC Plug Power Adapter Extension Cable, 18AWG Heavy Duty Cord for 12V, 24V LED Strip, Lighting, and more, White Hanvex Heavy Duty 2.1mm x 5.5mm DC Plug Extension Cord, Male to Female Cable Specs - 12ft, 18AWG, UL 2464 (UL Component) Connectors - Female: 2.1mm x 5.5mm jack. Male: 2.1mm x 5.5mm barrel plug. For DC power - Recommended up to 36 volt, max load 6.5amp or less This cable will only work with power adapter with 2.1mm x 5.5mm plug and not other sizes