3D Printer Kit UNO R3 Enhanced Edition RAMPS 1.4 Switch 42 Stepper Motors New

4 DRV8825 stepper motor drivers with heat sinks, upgraded from A4988 for enhanced performance. Compatible With: A4988 or DRV8825 Stepper Drivers. DRV8825 Stepper Motor Driver: Upgraded from A4988. Suitable for driving stepper motors - up to 8.2V~45V, 2.5A.

eBay