--- product_id: 42399670 title: "STEPPERONLINE Stepper Motor Driver 1.0-4.2A 20-50VDC 1/128 Micro-Step Resolutions for Nema 17 and 23 Stepper Motor DM542T" brand: "stepperonline" price: "$69.89" currency: USD in_stock: true category: "Stepperonline" url: https://www.desertcart.us/products/42399670-stepperonline-stepper-motor-driver-1-0-4-2a-20-50vdc store_origin: US region: United States of America --- # 1.0-4.2A peak current 1/128 ultra-fine microstep resolution 20-50VDC wide voltage range STEPPERONLINE Stepper Motor Driver 1.0-4.2A 20-50VDC 1/128 Micro-Step Resolutions for Nema 17 and 23 Stepper Motor DM542T **Brand:** stepperonline **Price:** $69.89 **Availability:** ✅ In Stock ## Summary > 🚀 Elevate your CNC game with precision power that never stalls! ## Quick Answers - **What is this?** STEPPERONLINE Stepper Motor Driver 1.0-4.2A 20-50VDC 1/128 Micro-Step Resolutions for Nema 17 and 23 Stepper Motor DM542T by stepperonline - **How much does it cost?** $69.89 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/42399670-stepperonline-stepper-motor-driver-1-0-4-2a-20-50vdc) ## Best For - stepperonline enthusiasts ## Why This Product - Trusted stepperonline brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power Flexibility:** Supports a broad 20-50VDC input range with selectable 5V/24V logic voltage for seamless integration. - • **Next-Level CNC Upgrade:** Transform your CNC setup with cooler, quieter, and faster stepper driving—join the pros who refuse to settle. - • **Plug & Play Confidence:** Clear labeling, detailed schematics, and factory-tested reliability backed by 1-year warranty and lifetime support. - • **Robust Current Handling:** Delivers up to 4.2A peak current, perfectly matching Nema 17 & 23 motors for high-torque applications. - • **Precision at Every Pulse:** Experience industry-leading 1/128 microstep resolution for ultra-smooth, whisper-quiet motor control. ## Overview The STEPPERONLINE DM542T is a high-performance industrial-grade stepper motor driver designed for Nema 17 and 23 motors. It supports a wide voltage range (20-50VDC) and peak currents from 1.0 to 4.2A, featuring an ultra-fine 1/128 microstep resolution for exceptional smoothness and accuracy. With selectable logic voltage (5V/24V), clear labeling, and robust build quality, it’s engineered for professional CNC applications demanding reliability, quiet operation, and precise control. Backed by a 1-year warranty and lifetime customer service, it’s the go-to upgrade for millennial managers seeking cutting-edge automation performance. ## Description STEPPERONLINE Stepper Motor Driver 1.0-4.2A 20-50VDC 1/128 Micro-Step Resolutions for Nema 17 and 23 Stepper Motor DM542T: desertcart.com: Industrial & Scientific ## Features - Stepper motor driver DM542T is updated to version V4.0, add 5V/24V logical voltage selector, alarm outputs. Please attention, Factory setting is 24V, if you need to use 5V, switch selector on the top of the driver. - Industrial-grade Stepper Driver, Suit for Nema 17 and 23 Stepper Motor - 1.0~4.2A, 20~50VDC, 1/128 Microstep Resolution - Pulse signal: 4-5V when PUL-HIGH, 0-0.5V whenPUL-LOW. The same as DIR and ENA signals - We provided this stepper motor kit with 30 days free replacement or refund, 1 year warranty and whole life customer service from the date of purchasing. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06Y5VPSFN | | Best Sellers Rank | #83,662 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #45 in Motor Speed Controllers | | Brand Name | STEPPERONLINE | | Color | Black | | Customer Reviews | 4.7 4.7 out of 5 stars (673) | | Display Type | LCD or LED | | Item Dimensions L x W x H | 4.64"L x 1"W x 2.97"H | | Item Weight | 210 g | | Manufacturer | OMC CORPORATION LIMITED | | Material Type | Copper | | Model | DM542T | | Number of Items | 1 | | Number of Packs | 1 | | Operating Temperature | 45 °C | | Part Number | DM542T | | UPC | 714485410482 715624558829 715776647549 | | Voltage | 5 volts | ## Product Details - **Brand:** STEPPERONLINE - **Color:** Black - **Material:** Copper - **Product Dimensions:** 4.64"L x 1"W x 2.97"H - **Voltage:** 5 volts ## Images ![STEPPERONLINE Stepper Motor Driver 1.0-4.2A 20-50VDC 1/128 Micro-Step Resolutions for Nema 17 and 23 Stepper Motor DM542T - Image 1](https://m.media-amazon.com/images/I/51FpPceMpuL.jpg) ![STEPPERONLINE Stepper Motor Driver 1.0-4.2A 20-50VDC 1/128 Micro-Step Resolutions for Nema 17 and 23 Stepper Motor DM542T - Image 2](https://m.media-amazon.com/images/I/51BtN0CZqcL.jpg) ![STEPPERONLINE Stepper Motor Driver 1.0-4.2A 20-50VDC 1/128 Micro-Step Resolutions for Nema 17 and 23 Stepper Motor DM542T - Image 3](https://m.media-amazon.com/images/I/31pXa2sus2L.jpg) ![STEPPERONLINE Stepper Motor Driver 1.0-4.2A 20-50VDC 1/128 Micro-Step Resolutions for Nema 17 and 23 Stepper Motor DM542T - Image 4](https://m.media-amazon.com/images/I/41g36JRpG5L.jpg) ![STEPPERONLINE Stepper Motor Driver 1.0-4.2A 20-50VDC 1/128 Micro-Step Resolutions for Nema 17 and 23 Stepper Motor DM542T - Image 5](https://m.media-amazon.com/images/I/31pn0ixFBDL.jpg) ## Questions & Answers **Q: Can this drive a 200 step motor?** A: yes, all this does is convert pulses into different voltage pulses (adjusts current) across the stepper motor coils. The driver doesn't care about the steps/revolution of your motor. You can adjust the number of steps per revolution (microsteps x stepper steps/rev). It is up to the users to convert number of pulses into revolutions of motor shaft if you care about absolute position or have a fixed pulse frequency and want a specific RPM. **Q: Can this drive 400 step / 0.9° stepper motors?** A: This controller is designed for a 400 ppr motor. You can also get much better than .9° resolution by setting the switches. On my mill I use the 800 ppr setting which is a half step or .45°/step. You then need to make adjustments in software or code for 800 ppr vs 400 ppr. I have not used it with higher than 800 ppr or 1/2 step so I don't know how it will work for you. **Q: Can this be controlled using a Raspberry Pi?** A: I would think with the appropriate hat it could. **Q: This is my 1st go at this. is the dm542t the best choice to run the 17hs24-2104s 92oz nema 17 motor?** A: idk what the best choice is , but these will run them.. id set the dip switches to low current ## Frequently Bought Together - STEPPERONLINE CNC Stepper Motor Driver 1.0-4.2A 20-50VDC 1/128 Micro-Step Resolutions for Nema 17 and 23 Stepper Motor - 42 57 Stepper Motor Driver Controller Integrated Board Forward/Reverse Pulse Speed Angle Control Module PLC Serial Communication - STEPPERONLINE High Torque Nema 23 CNC Stepper Motor 114mm 425oz.in/3Nm CNC Mill Lathe Router --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/42399670-stepperonline-stepper-motor-driver-1-0-4-2a-20-50vdc](https://www.desertcart.us/products/42399670-stepperonline-stepper-motor-driver-1-0-4-2a-20-50vdc) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-11-09*