Features 1、On‑board DIP switch, you can easily adjust the drive segments. 2、Terminal power connector for easy connection of drive power. 3、Compatible with 12/24V drive scheme. 4、Highly integrated expansion board, small size, stable performance. 5、Suitable for 42 stepper motor drive, 3D printers and DIY. Specification Features: On-board DIP switch, you can easily adjust the drive segments. Terminal power connector for easy connection of drive power. Compatible with 12/24V drive scheme. Highly integrated expansion board, small size, stable performance. Suitable for 42 stepper motor drive, 3D printers and DIY. Specification: Ports: Digital Interface: Direction, enable, speed Size: 42*42*10mm Fixed: 3mm Pitch: 35.56*35.56mm (1400*1400mil) Applicable module: For A4988 / DRV8825 Package list: 1 * Stepper Motor Driver Expansion Board Note: Please note the direction when installing the drive module, otherwise it will burn down the module. Package List