AC to DC Power Adapter (DC12V 0.5A) CCTV Surveillance Security Cameras Power Supply AC to DC power supply Input: AC100-240V, 50/60Hz, Output: DC12V 0.5A 12V DC 500mA switching Power Supply Out put adaptor: 5.5mm x 2.1mm. Please make sure the part will match your machine before bidding 1 Year Warranty and Free Life Time Tech Support From U.S.A.