---
product_id: 640823165
title: "Din Rail \"Lipstick\" RS485 to Ethernet Serial Device Server Modbus Gateway RTU to TCP Rich Protocols MQTT/TCP/UDP/HTTP Edge Computing USR-DR134"
brand: "pusr"
price: "€ 61.78"
currency: EUR
in_stock: true
reviews_count: 3
category: "Pusr"
url: https://www.desertcart.sk/products/640823165-din-rail-lipstick-rs485-to-ethernet-serial-device-server-modbus
store_origin: SK
region: Slovakia
---

# 100 Mbps Ethernet speed Ultra-compact 'lipstick' size Modbus RTU to TCP conversion Din Rail "Lipstick" RS485 to Ethernet Serial Device Server Modbus Gateway RTU to TCP Rich Protocols MQTT/TCP/UDP/HTTP Edge Computing USR-DR134

**Brand:** pusr
**Price:** € 61.78
**Availability:** ✅ In Stock

## Summary

> 📡 Tiny Tech, Massive Connectivity — Stay Ahead, Stay Connected!

## Quick Answers

- **What is this?** Din Rail "Lipstick" RS485 to Ethernet Serial Device Server Modbus Gateway RTU to TCP Rich Protocols MQTT/TCP/UDP/HTTP Edge Computing USR-DR134 by pusr
- **How much does it cost?** € 61.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/640823165-din-rail-lipstick-rs485-to-ethernet-serial-device-server-modbus)

## Best For

- pusr enthusiasts

## Why This Product

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

## Key Features

- • **Modbus Gateway Mastery:** Effortlessly converts Modbus RTU to Modbus TCP and JSON for smart industrial control.
- • **Plug & Play Simplicity:** Configure easily via AT commands, built-in webpage, or utility—no hassle, no downtime.
- • **Space-Saving Powerhouse:** Tiny form factor that fits anywhere, perfect for sleek, modern setups.
- • **Seamless Protocol Support:** Handles TCP/UDP/HTTP/DHCP/DNS for versatile network integration.
- • **Multi-User & Multi-Device Ready:** Supports multiple TCP clients and centralized device management for scalable control.

## Overview

The USR-DR132 is a compact RS232 to Ethernet serial device server designed for efficient Modbus RTU to TCP conversion. With a footprint smaller than an Ethernet cable, it supports multiple network protocols and multi-user access, making it ideal for professional industrial and IoT applications. Note: This model does not support MQTT.

## Description

Buy PUSR Din Rail "Lipstick" RS485 to Ethernet Serial Device Server Modbus Gateway RTU to TCP Rich Protocols MQTT/TCP/UDP/HTTP Edge Computing USR-DR134: Device Servers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Does Not Support MQTT - Listing falsely states it supports MQTT. A newer model does, but the one shipped does not and can’t be upgraded via firmware to support it. Support will send you a link to another site to purchase the updated model.
Review: Compact and Versatile RS485 to Ethernet Converter - I recently integrated the PUSR USR-DR134 "Lipstick" RS485 to Ethernet Serial Device Server into my industrial automation setup, and it's been performing exceptionally well. Despite its compact size—comparable to a lipstick tube—it offers robust functionality. The device facilitates seamless two-way transparent data transmission between RS485 serial ports and Ethernet, supporting protocols like MQTT, TCP, UDP, and HTTP. Its Modbus gateway capability allows for easy conversion between Modbus RTU and Modbus TCP protocols, simplifying communication with PLCs and SCADA systems. Installation was straightforward, thanks to the DIN rail mounting and push-type connectors. Operating reliably in various environments, this converter has proven to be a reliable solution for integrating serial devices into an Ethernet network

## Features

- The USR-DR134 is an ultra-small size serial server device with one serial port
- It can realize transparent transmission between RS485 and Ethernet ports.
- It supports timeout restart, DHCP, DNS and other advanced features such as heartbeat packet, registration packet etc.
- It can make it easy for data transmitting of the field serial device.
- One More Thing, Modbus Gateway Connect to PLC, SCADA system or user’s private server to achieve local or remote motoring.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D4M4LQX2 |
| Best Sellers Rank | #17 in Computer Networking Device Servers |
| Brand | PUSR |
| Color | Red |
| Compatible Devices | Desktop |
| Customer Reviews | 2.1 out of 5 stars 3 Reviews |
| Data Link Protocol | Ethernet |
| Data Transfer Rate | 100 megabits_per_second |
| Hardware Interface | Ethernet |
| Manufacturer | PUSR |
| Model Number | DR134(RS485 to Ethernet) |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Warranty Description | 2 years |

## Product Details

- **Brand:** PUSR
- **Compatible Devices:** Desktop
- **Data Link Protocol:** Ethernet
- **Data Transfer Rate:** 100 Megabits Per Second
- **Hardware Interface:** Ethernet
- **Item Weight:** 4.32 ounces
- **Manufacturer:** PUSR

## Images

![Din Rail "Lipstick" RS485 to Ethernet Serial Device Server Modbus Gateway RTU to TCP Rich Protocols MQTT/TCP/UDP/HTTP Edge Computing USR-DR134 - Image 1](https://m.media-amazon.com/images/I/31AM4VtsKtL.jpg)
![Din Rail "Lipstick" RS485 to Ethernet Serial Device Server Modbus Gateway RTU to TCP Rich Protocols MQTT/TCP/UDP/HTTP Edge Computing USR-DR134 - Image 2](https://m.media-amazon.com/images/I/61oxlGh6+ZL.jpg)
![Din Rail "Lipstick" RS485 to Ethernet Serial Device Server Modbus Gateway RTU to TCP Rich Protocols MQTT/TCP/UDP/HTTP Edge Computing USR-DR134 - Image 3](https://m.media-amazon.com/images/I/61CLGNUZI9L.jpg)
![Din Rail "Lipstick" RS485 to Ethernet Serial Device Server Modbus Gateway RTU to TCP Rich Protocols MQTT/TCP/UDP/HTTP Edge Computing USR-DR134 - Image 4](https://m.media-amazon.com/images/I/51LMrMEQddL.jpg)
![Din Rail "Lipstick" RS485 to Ethernet Serial Device Server Modbus Gateway RTU to TCP Rich Protocols MQTT/TCP/UDP/HTTP Edge Computing USR-DR134 - Image 5](https://m.media-amazon.com/images/I/51cKgL7tnhL.jpg)

## Available Options

This product comes in different **Model** options.

## Customer Reviews

### ⭐ Does Not Support MQTT
*by A***. on June 18, 2025*

Listing falsely states it supports MQTT. A newer model does, but the one shipped does not and can’t be upgraded via firmware to support it. Support will send you a link to another site to purchase the updated model.

### ⭐⭐⭐⭐⭐ Compact and Versatile RS485 to Ethernet Converter
*by S***D on April 7, 2025*

I recently integrated the PUSR USR-DR134 "Lipstick" RS485 to Ethernet Serial Device Server into my industrial automation setup, and it's been performing exceptionally well. Despite its compact size—comparable to a lipstick tube—it offers robust functionality. The device facilitates seamless two-way transparent data transmission between RS485 serial ports and Ethernet, supporting protocols like MQTT, TCP, UDP, and HTTP. Its Modbus gateway capability allows for easy conversion between Modbus RTU and Modbus TCP protocols, simplifying communication with PLCs and SCADA systems. Installation was straightforward, thanks to the DIN rail mounting and push-type connectors. Operating reliably in various environments, this converter has proven to be a reliable solution for integrating serial devices into an Ethernet network

### ⭐ NOT MODBUS Compliant! Does not support 125 register polling
*by K***. on October 3, 2025*

This gateway works as a modbus bridge both in IP master or RTU master modes. However it only supports modbus queries of 123 registers or less. Modbus standard is 125 registers. If you are doing a single request of less than that it will work but if you are polling large, sequential, register blocks this device will fail. I've emailed support with the issue with no answer. I will update my review

## Frequently Bought Together

- PUSR Din Rail Tiny Size RS232 to Ethernet Converter Serial Device Server Modbus Gateway Modbus RTU to Modbus TCP Support Mqtt Edge Computing USR-DR132
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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-08-25*