Description: 100% brand new and high quality Material: Electrical components 42/57/86 TB6600 Stepper Motor 32-segment driver updated version 4.0A 40VDC for CNC milling machine This unit is an upgraded version of TB6600, the breakdown of increase to 32 segments, for high targeting purposes. Applicable stepper motor: 42.57, 86 Phase type phase (4 wire 6 wire 8 wire line) Specification: 9 V-40 V DC power supply; H-bridge Bipolar constant-phase flow-driven; the maximum output current of 4.0A eight optional; up to 32 segments of six types of sub-modes available; the input signal is high-speed optical insulation; standard common anode single pulse interface; HOLD function offline; semi-closed chassis can accommodate the most demanding environment; provide semi-automatic current locking function; built-in thermal protection and overcurrent protection. Size: Approx. 9.6*5.5*2.7cm/3.88x2.17x1.06inch Color: As Pictures Shown Package Includes: 1 Piece Stepper Motor Driver Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.