5V Universal AC-DC Power Adapter Supply 1A 1000mA with 2.1mm X 5.5mm DC Plug
Universal Power Adapter
Voltage: 5V
Input: 120-240V 50-60Hz
2.1 DC Plug end (standard size on many devices)
Current: anything upto 1000mA (for example if you devices only need 300mA this will work fine)
Center Positive Polarity
Regulated to protect connected device from over voltage