Input: 110-240V. Connector: 3.5/1.35 - 5.5/1.5 - 5.5/2.1 - 5.5/2.5 - Jack 2.5mm - Jack 3.5mm. Function: switched-mode stabilized power supply. Efficiency: 79.6% 3V, 78.7% 4.5V, 79.5% 5V, 83.5% 7.5V, 85.5% 9V, 86.6% 12V. Output: Switchable. Output voltage: 3 / 4.5 / 5 / 6 / 7.5 / 9 / 12V. Dimensions: 87.5mmx51mmx77.4mm. Rated Current: 2250mA. RoHS: yes. Voltage supply: 110...240VAC. Power: 27W. Spec info: wall power adapter, 'Eco friendly'