STEPPERONLINE 2/4 Phase Nema 23 Stepper Motor Driver 24-50VDC 1.5A-4.5A 256 Microstep M542T

Worked perfect for me. Tied pul - & dir - to ground & left enable - unconnected per the online documentation. Micro stepping seems good. For testing I was able to drive a nema 23 stepper up to 3500 rpm in series parallel (using 2x micro @ 24khz and 48volt) with an arduino. All units came sealed with QC stickers on them (fwiw). If they last for the long haul I honestly don't know how you could do better than this driver.These drivers are still working great after 6 months of pretty intensive hobby use on a 2'x4' cnc router table.

Working great. I used this to add a stepper motor to the Z axis on my Chinese eBay 50W laser cutter. It drives a Nema 23 stepper motor easily. Setup was simple and worked as expected.

Works and it's easy to use with a Raspberry Pi as the PWM driver. I'm guessing people who are having problems with it either don't know what they're doing or just got a bad unit. I haven't had any problems.

total POS i use stepper drivers all the time and know how to set them up and use them. this thing worked for a few minutes and then goes into fault every time i send a signal to it. i need something reliable so this POS is going back.

Unit works intermittently

Good stepper motor driver. Has been installed and operating without any glitches. Standard wiring and configuration. Seems like a good purchase.

I just tested these out on the bench(without a load on the motor). They all work properly. No issues. Great for the price.

Used it to replace my Maxnc CNC system to use with raspberry pi and a CNC hat.