SMAKN AC/Dc 5V 1A Switching Power Supply Adapter 100-240 Ac Input: 100-240 V AC 50/60 Hz Output: 5V, 1.0A (1000 mA) Plug Spec: ID: 2.1 mm; OD: 5.5 mm; Length: 7 mm; Polarity: Center+ Cable Length: 70 cm