Specifications: Type: AC/DC Power Adapter Power: 12W Voltage: DC-12V Current: 1A Capacity: 1000MA Input Voltage: AC 100-240V Connector: 55x25/21mm Input Ripple: Less than 80mV Work Efficiency: 98% Work Frequency: 98% Size: 74x42x28mm Wire Length: 2m Applicable Device: The common electronic devices which connector tip is 55mm outer diameter and 21mm inner diameter such as: router set top box special security camera etc and also work with any device that requires the same power output and connector dimensions Package Include: 1pcs 12V 1A 12W Power Adapter