... , 1/64 , 1/128 , 1/256 Overheat, Over Voltage, Over Current Protection Dimension: 150mm x 98mm x 45mm Weight: ... I/O Port Connection:AC,AConnect 12 to 36V DC power Supply B+, B- A+, A- Step+ (CP+), ... 1=half current 0=full currrentCNC DB25 Breakout Board adapter stepper motor driver IIIBuilt in DB25 male connector. ... P11,P12,P13,P15. DB25 GND Pin: P18-P25. Power supply: +5V DC. Built in C-class Optical- ...