... motor driver microstepping driver, current: 2~6A Power input type:24V~55V AC microstepping driver, current: 2-6AQJ6060AC quick ... 1,14,1,23,24,34,43Characteristics:1. Power input type:24V~55V AC2. Output current:2~6A3. Mircostepping:1 ... axle flows fan dispels the heat, to make the module run reliably for a long time. 2.Half current ... high quality stepper motor driver,2A-6A,Power input type:24V~55V AC