The driver is good working for nema34 and nema42 3phase close loop stepper motor, 220V-7A. The warranty time is 1 year.Size specificationProduct Category: Closed-loop motor and driver > Motor driverTag: DSP-32207BH 3PHASE close stepper motor driverTechnical Specifications / Features:Compatible with: Nema34 and Nema42 3-phase close loop stepper motorsInput Voltage: 220VCurrent: 7AWarranty: 1 year