SMAKN Dc 12V 2A Switching Power Supply Adapter 100-240 Ac US Plug Universal external switching power supply adapter Can charge for Router, mobile hard disk, switch, CCTV CAMERA, HUB and other electrical devices with same output and Plug Dimension. Input: AC 100-240V, 50-60Hz Output: DC 12V 2A DC Plus Dimension: 5.5mm x 2.1mm