Features:1. On-board DIP switch, you can easily adjust the drive segments2. Terminal power connector for easy connection drive power3. Compatible with 12 / 24V drive scheme4. Suitable for 42 stepper motor drive, 3D printers and DIYSpecifications:Size: 42 x 42 x 15mmFixed: 3mmPitch: 1400 x 1400mil (35.56 x 35.56mm)Logic voltage: 5VInput voltage: 12-30VPorts: DigitalInterface: Direction, enable, speedApplicable modul: A4988, DRV8825Note: Please note the direction when installing the drive module, otherwise it will burn modulePackage includes:10 x 42 Stepper Motor Drive Expansion Board