3PCS 45Ncm Nema 17 Stepper Motor 2A 4-wire 1m Cable for DIY 3D Printer CNC Robot Packed in 3 PCS with 1 m Cable& Harwin connector NEMA-17 bipolar 40mm 4-wire 1.8 step angle(200 steps/rev) Rated current 2A & resistance 1.1ohms 45Ncm(63.7oz.in) holding torque