Parameter：Input voltage:AC 100-240V~50/60Hz, output voltage: DC 12V, output current: DC 2A Size: output DC line: 1 meter;4-way splitter cables: 16.5inch,Plug Diameter, 5.5 mm Outer, 2.1 mm Inner Package：1 set of DC 12V 2A power adapter (including cable) and 4-way splitter cables Easy to use: just plug the power adapter into the power supply, and it can be used. Eight power lines can supply power for multiple electronic devices Applied range：Very suitable for closed-circuit television and video cameras in home or office Very suitable for closed-circuit television and video cameras in home or office