DSC-SWP5A12-4P, CCTV Surveillance 12V 5A 1 To 4 Power Adapter Splitter Power Supply by DIYSecuritycameraworld Input: AC 100V-240V,50/60Hz 1.5A Output: DC 12V 5A(5000mA) inner diameter: 2.1mm, outer diameter: 5.5mm Top Quality, UL Approved 1-4 Splitter Cable for Cameras