Features: 1. Can drive 4/6/8 wire two-phase stepper motor. 2. 32-bit DSP technology for motor control. 3. Pulse and direction control signals are compatible with 5-24VDC. 4. ALM output up to 24VDC/100mA. 5. No need to serial with resistor. 6. In addition to the regular auto-tuning setting, current and microstep setting, add pulse single and dual mode setting, command filtering setting, alarm output configuration setting, enable lock shaft setting and self-run setting. Specification: Model: DM542S Input voltage: 5-24VDC Output: Max 24VDC/100mA Package weight: Approx. 261g/9.2oz Package list: 1 * Stepper Motor Driver Package List 1Can drive 4/6/8 wire two-phase stepper motor. 232-bit DSP technology for motor control. 3Pulse and direction control signals are compatible with 5-24VDC. 4ALM output up to 24VDC/100mA. 5No need to serial with resistor.