Driver, Stepper Motor 

12/8 kinds of micro-step selection

200x micro-steps

Frequency response: 200Kbps

Bipolar constant current chopper control

Photo coupler isolated input or output

Drive current range: 0.1 to 4.0A/phase

Single power input

Voltage range: 12 to 40V DC

Overheat protection

Over current and under voltage protection

Dimensions: 25 x 136 x 92mm