The DFRobot DC Fan Module is an OUTPUT device. It is essentially a DC motor (with brushes) plus a propeller. It is a digital device because it is switched on and off by a digital signal (0 or 1). SPECIFICATION Working Voltage：3~5V Working Temperature：-20~85℃ Speed (no load)：15000 rpm Speed (6V)：8000 rpm Current (6V)：40mA Stall current (6V)：360mA Torque (6V):0.111kg/cm Size: 36*27*13 …