Features 6N137 high-speed OptoCouple to ensure high speed without losing steps for 42,57,86 Stepper within 3A 2/4 -phase / 4 wire / 6 wire stepper motor automatic half-decay excitation mode: synchronizing, half step, 1/8 step, 1/16 step current level is adjustable to meet your application needs large heat sink for good heat dissipation overheating and over-current protection circuit to ensure optimal performance Specifications operating voltage: 10 to 35 VDC rated output current: ± 3 A - peak 3.5 A dimensions: 50 x 75 x 35 mm weight: 80 g Manual User manual Info Sheets TB6560AHQ Data Sheet TB6560 Connection Firmware Code read more…