Amamax AC/DC Wall Adapter - 5 Volt, 2A(2000mA) 5.5mm x 2.1mm plug (UL Listed) Power Supply Connector: 2.1/5.5mm Plug Input: AC100 ~ 240V, 50/60Hz, 0.5A max Output: DC5V, 2000mA Dimensions: 2.75"(L) x 1.125"(W)x 1.875" (H) UL Listed , Wire Length: 5 Ft