Wilson 859900 AC/DC 12V/3A Power Supply w/ 2.5x 12.5mm DC jack is designed to work for amplifiers that run on 12V. Not compatible with 6V systems. Converts 120 AC to 12V DC and plugs into all standard US & Canadian wall outlets. Works well with the Wilson 461104 Ag Pro 4G, Wilson 460111 MobileMaxx 3G. and the weBoost 470111 Drive 3G-X.