SH-CL57 Driver for the nema17, nema23, nema24 close loop stepper motorModel: SH-CL57Voltage: 36VCurrent: 4AWarranty time: 1 yearTechnical Specifications / Features:Compatible with Nema17, Nema23, and Nema24 closed loop stepper motorsDriver model: SH-CL57Input voltage: 36VOutput current: 4AWarranty: 1 year