Aquarium Fish Tank Adjustable Speed Wind Fan Usb Interface External Wall Mounted
 
Specifications
Size: 4.92 inches x 1.5 inches / 12.5cm x 4cm
Power: 3.8 Watts
Power Plug Type USB / DC 5 volt
Requires [NOT Included] one USB Wall Plug rated at DC 5 Volts
 
Note - USB Power Plug Not Included. Must be a DC 5 volt higher will burn up the fan.