... , 65. 0A + CNC DB25 Breakout Board adapter KitPower Input: 12V to 36 VDCPhase Current: adjustable from 1.5 ... 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- ...