... power consumption 3.High microstep,high torque 4.low noise,broad voltae range, Characteristics:1.DC power input type:24V~80V2. ... ~40°C Humidity<90%.I/O Ports:1,VCC+:DC power positive poleNote:Must guard against exceeding 80V,so ... as not to damage the module2,GND:DC power cathode3,A+,A-:Stepping motor one winding4,B+, ... using new 32-bit DSP with high performance, high torque, and low noise