2 PCS 12V DC Power Adapter Supply 2.1mm 1A, CCTV Input Voltage: 100v-240v ~ 50/60Hz; Output: 12v 1a or 12v 1000ma; Compatible with 5.5mmX2.5mm and 5.5mmX2.1mm plug; Power adaper for router, switch, CCTV CAMERA , MICROPHONE, networking HUB,12v MP3,MP4,Electric toys and etc.