Hanvex HDX6W 6ft 18AWG 2.1mm x 5.5mm DC Plug Extension Cable for Power Adapter, White, Heavy Duty Hanvex Heavy Duty 2.1mm x 5.5mm DC Power Supply Extension Cord, Male to Female Cable Specs - 6ft, 18AWG, UL 2464 (UL Component) Connectors - Female: 2.1mm x 5.5mm jack. Male: 2.1mm x 5.5mm 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.