BiXPower 5V 3A AC to DC UL Approval Power Adapter with 4.0 x 1.7mm Connector This AC to DC power adapter converts 110~240V AC power to 5V DC power with maximum 15 Watt (3 Amps) output capacity. This power adapter has a fixed 4.00mm x 1.70mm connector (Outside Diameter: 4.00mm; Inside Diameter: 1.70mm). Safety: UL/CE Approval Dimensions: 2.8" x 1.8" x 1.2" Weight: 110g (3.8 oz)