Neewer AC 100-240V Converter Adapter DC 3V 1A 1000mA Universal Charger Power Supply US Plug for CCTV Camera Router Mobile Hard Disk Switch HUB etc 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 3V 1A DC Plus Dimension: 5.5mm x 2.1mm