---
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: "¥9813"
currency: JPY
in_stock: true
reviews_count: 3
category: "Pusr"
url: https://www.desertcart.jp/products/640823165-din-rail-lipstick-rs485-to-ethernet-serial-device-server-modbus
store_origin: JP
region: Japan
---

# 100 Mbps Ethernet speed RS485 to Ethernet transparent transmission Modbus RTU to TCP gateway 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:** ¥9813
**Availability:** ✅ In Stock

## Summary

> 🔌 Tiny device, massive industrial impact — connect smarter, not harder!

## 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?** ¥9813 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/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

- • **Compact Powerhouse:** Ultra-small 'lipstick' size fits tight DIN rail spaces effortlessly
- • **Robust Modbus Gateway:** Effortlessly connect PLCs and SCADA systems with Modbus RTU to TCP conversion
- • **Plug & Play Installation:** DIN rail mounting with push-type connectors for quick, hassle-free setup
- • **Seamless Protocol Bridge:** Transparent RS485 to Ethernet data transmission for smooth industrial integration
- • **Advanced Network Features:** Supports DHCP, DNS, heartbeat & registration packets for reliable uptime

## Overview

The PUSR USR-DR134 is a compact DIN rail-mounted serial device server that converts RS485 serial data to Ethernet at 100 Mbps. Designed for industrial automation, it supports Modbus RTU to TCP gateway functionality and advanced network features like DHCP and heartbeat packets. Its ultra-small form factor and easy installation make it ideal for integrating legacy serial devices into modern Ethernet networks, enabling local or remote monitoring via PLCs and SCADA systems.

## 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

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-25*