UIrobot featured Stepper Motor Controllers size only 42.3mm*42.3mm*13.5mm which include Parallel, Serial and CAN Protocol type Stepper Controllers for directly mounting onto size 42/57/86/110 and so on stepper motors. Super compact volume, high performance, standalone or integral usage, easy wiring, strong driving force are the feature of our products. Till now on, UIM stepper controller can use 10V-40V DC supply and drive 8 amps. High voltage supply to 80V and 32, 64 microstepping is coming to the market very shortly.