1PCS TB6560 Driver Board CNC Router Single Axis Controller Stepper Motor Driver

For 42,57,86 Stepper within 3A 2/4 -phase / 4 wire / 6 wire stepper motor, not fit for more than 3A stepper motor. 6N137 high - speed OptoCoupler, to ensure a high speed without step out. 3, 6N137 high-speed optical coupling, to ensure a high speed not step out.

eBay