---
product_id: 525848192
title: "CNC Digital Microstep driver DM542 Stepper Motor Controller 2-phase Digital Stepper Motor Driver 20-50V DC Max 4.2A for Nema 17, Nema 23 and Nema 34 series stepper motor, Replace M542 M542H"
brand: "polisi3d"
price: "35049CFA"
currency: XOF
in_stock: true
reviews_count: 8
url: https://www.desertcart.sn/products/525848192-cnc-digital-microstep-driver-dm542-stepper-motor-controller-2-phase
store_origin: SN
region: Senegal
---

# 20-50V DC power range Max 4.2A current for high torque Up to 50,000 RPM speed CNC Digital Microstep driver DM542 Stepper Motor Controller 2-phase Digital Stepper Motor Driver 20-50V DC Max 4.2A for Nema 17, Nema 23 and Nema 34 series stepper motor, Replace M542 M542H

**Brand:** polisi3d
**Price:** 35049CFA
**Availability:** ✅ In Stock

## Summary

> 🚀 Power your precision—drive every step like a pro!

## Quick Answers

- **What is this?** CNC Digital Microstep driver DM542 Stepper Motor Controller 2-phase Digital Stepper Motor Driver 20-50V DC Max 4.2A for Nema 17, Nema 23 and Nema 34 series stepper motor, Replace M542 M542H by polisi3d
- **How much does it cost?** 35049CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/525848192-cnc-digital-microstep-driver-dm542-stepper-motor-controller-2-phase)

## Best For

- polisi3d enthusiasts

## Why This Product

- Trusted polisi3d brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Power Handling:** Handles up to 50V and 4.2A max current to drive demanding industrial applications effortlessly.
- • **Universal Compatibility:** Seamlessly supports Nema 17, 23, and 34 stepper motors—your all-in-one driver solution.
- • **Compact & Durable Design:** Metal and plastic build ensures long-lasting reliability without sacrificing space.
- • **Precision Microstepping Control:** Experience ultra-smooth motion with high subdivision driving for flawless CNC performance.
- • **Hassle-Free Support & Replacement:** Confidence guaranteed with responsive customer service and easy refunds or reshipments.

## Overview

The POLISI3D DM542 is a high-performance 2-phase digital microstep driver designed for Nema 17, 23, and 34 stepper motors. Operating within a 20-50V DC range and delivering up to 4.2A current, it supports speeds up to 50,000 RPM. Its compact metal-plastic construction ensures durability, making it ideal for CNC and automation applications requiring precise, smooth motor control.

## Description

Features: 1.Optical isolation signal input; 2.Output current DIP switch is adjustable; 3.Bipolar constant current chopping method; 4.High segmentation: 2,4,8,16,32,64,128,256. 5,10,25,50,125,200; 5.TTL input signal compatible,while accepting differential signal input .

## Features

- Suitable for Nema 17, Nema 23 and Nema34 Stepper Motor，2-phase hybrid stepper motors (Outer diameter: 42, 57,86mm).
- Package: 1piece DM542
- More informations, please refer to the last photo in this link.
- This high subdivision driver is suitable for high subdivision motor. Suitable for stepper motor: 42,57,86 type 2-phase 4-phase (4-wire, 6-wire, 8-wire)
- PLEASE NOTE: if there is any problem, please feel free to contact us, each defect items could be refunded or reshipped, we will try out utmost to support you.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | POLISI3D |
| Model Name | nema |
| Speed | 50000 RPM |
| Voltage | 50 Volts |
| Horsepower | 1 |
| Material | metal+plastic |
| Item Weight | 0.21 Kilograms |
| Manufacturer | POLISI3D |
| UPC | 791548326775 791300410032 |
| Part Number | DM542 |
| Item Weight | 7.4 ounces |
| Product Dimensions | 3.94 x 7.87 x 14.57 inches |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** POLISI3D
- **Model Name:** nema
- **Speed:** 50000 RPM
- **Voltage:** 50 Volts
- **Horsepower:** 1

## Images

![CNC Digital Microstep driver DM542 Stepper Motor Controller 2-phase Digital Stepper Motor Driver 20-50V DC Max 4.2A for Nema 17, Nema 23 and Nema 34 series stepper motor, Replace M542 M542H - Image 1](https://m.media-amazon.com/images/I/41mEIw4KS9L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A simple, effective stepper motor control with microstepping
*by A***L on October 9, 2023*

Though listed as a CNC microstep controller, I bought this to use on my personal electronics project. I cannot attest to its effective on CNC machines but for my application it works perfectly. I recommend looking up the online manual for this controller as the printing on the case does not list all settings - including the holding torque which can be modified via one of the dip switches.The input controls are pulse, enable and direction. There are specific timing requirements for this controller, especially where changing direction is concerned. Again, consult the manual if you are using this controller for your own project - the timing is important!One point to note. The Enable input can usually be left open circuit (the inputs are isolating optocouplers). I expected that you enable the controller by powering the Enable input (turning on the optocoupler). However this is incorrect. Activating the Enable has the effect of disabling the controller and causes the 'error' led to turn on solid.In my application I am driving a 3 Amp stepper motor, at 24V, from my raspberry pi. I use a common positive to the 3 inputs and buffer the pi (which outputs 3.3V) with a pull-low transistor (and base resistor) on each individual input. Works like a charm.Hope this helps! Overall a very nice, easy to use, controller.

### ⭐⭐⭐⭐⭐ Fast and worked
*by D***L on November 1, 2024*

Fast and worked

### ⭐⭐⭐⭐ Good Value
*by R***N on May 7, 2025*

Has worked well, but documentation is less than I expected

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.sn/products/525848192-cnc-digital-microstep-driver-dm542-stepper-motor-controller-2-phase](https://www.desertcart.sn/products/525848192-cnc-digital-microstep-driver-dm542-stepper-motor-controller-2-phase)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-11*