For R3 Kit 4401 A4988 Stepper Motor Driver Set CNC Shield 3.0 3D Printer
4 x A4988 Driver. 4 x 4401 Motor. The stepper motor can be connected or soldered in place via a 4‑pin for connector, and can work at DC12‑36V. The for R3 kit is fully equipped, which makes the kit quite practical and convenient for daily use.