The driver is good working for nema34 and nema42 3phase close loop stepper motor, 220 V-7A. The warranty time is 1 year. Size specificationProduct type: 3-phase close loop stepper motor driverCompatible motors: nema34 and nema42Input voltage: 220VCurrent: 7AWarranty: 1 yearCategory: Motor driverTag: DSP-32207BH 3PHASE close stepper motor driver