Hello,
I'm looking for a matching stepper motors driver for my motors.

My stepper is Nema34 with the following parameters in the bipolar parallel connection:
- 4,5 Nm of holding torque (about 637 oz-in)
- 4,2 A per phase
- 0,38 ohms per phase
- 2,5 mH inductance per phase

I've found out a DM860H chinese driver (which costs around 20$), that would match the motor's parameters. It has 7,2 A peak output current and max 110 V DC.
https://www.cnczone.com/forums/attac...d=446990&stc=1

Does anyone have any experience with these drivers? Is it worth a buying?