| Brand | Unbranded |
|---|---|
| Model | XY-SMH |
Check the listing for details. SMH 42 57 Stepper Motor Controller Forward/Reverse Pulse Delay Positioning Angle. Condition: New. Listed at 11.99 USD. Do not dismiss your dream. Input Reverse Polarity Protection: Yes. Pulse Frequency Range: 100Hz~80000Hz. Motor Signal: Common Cathode. Speed Level Range: 0-1000. Do not run through your life so fast that you forget not only where you have been, but also where you are.