Leadshine 3DM580, 3-Phase Stepper Motor DriverCondition:* New Take-Outs; Installed But Never Used/Energized. As Pictured.Additional Notes:* Extra-Low Noise Offers Excellent Quietness* Can drive 3/6 line 3-phase stepper motors* Anti-Resonance, Provides Optimum Torque And Nulls Mid-Range Instability* Supply Voltage: Up to +50 Volt DC* Output Current: 1.0-8.0 Amps (Programmable)* Pulse Input Frequency: 0-500 kHz* Microstep resolutions programmable, from 200 to 51200 steps/rev * Supports PUL/DIR And CW/CCW Modes* Over-voltage, over-current, phase-error protectionsLeadshine3DM580