Best Serial Device Servers

Are you looking for the best serial device servers to match your setup?
I offer a clear, engaging list that helps you choose the right options with confidence and ease.

Serial device servers help you link old gear to new networks. These tools make data sharing fast and simple.

You will find the best picks for your needs here. Our guide helps you choose with ease.

This list saves you time and money. Each top choice offers a smooth experience for every user. Read on to find your perfect match now.

List of Top 10 Serial Device Servers

Title	Best For	Price
MOXA NPort 5110-1 Port Serial Device Server, 10/100 Ethernet, RS232, DB9 Male	This device is perfect for engineers and IT teams who need a fast, simple way to link serial gear to a network. It’s great for anyone who wants smooth setup and reliable data flow.	View on Amazon (paid link)
StarTech 1-Port Serial to Ethernet Adapter, TAA (I13-SERIAL-ETHERNET)	This StarTech Serial to Ethernet Adapter is perfect for anyone who needs to connect serial devices like POS systems, barcode readers, or sensors to a network. It’s easy to manage, durable, and works smoothly in tough environments.	View on Amazon (paid link)
Lantronix UD1100001-01 UDS1100 – One Port Serial (RS232/ RS422/ RS485) to IP Ethernet Device Server – UL864, US Domestic 110VAC – Convert from RS-232, RS-485 to Ethernet	The Lantronix UD1100001-01 UDS1100 is perfect for anyone who needs to connect older equipment to a modern Ethernet network quickly and easily. It’s ideal for businesses or individuals looking to manage devices remotely without costly upgrades.	View on Amazon (paid link)
MOXA NPort 5150-1 Port RS-232/422/485 Serial Device Server	The MOXA NPort 5150-1 Port RS-232/422/485 Serial Device Server is perfect for engineers and IT professionals who need a compact and reliable solution to connect serial devices to a network. It suits those who want easy setup with real COM/TTY drivers and flexible control via Windows or Linux. If you need simple network management and versatile operation modes in a small package, this device is made for you.	View on Amazon (paid link)
PUSR TCP232-306 RS232 RS485 RS422 to Ethernet TCP IP Modbus Gateway Serial Device Server Serial to ethernet converters	This product is perfect for anyone needing to connect serial devices to an Ethernet network. It’s ideal for industrial or automation setups where reliable and stable communication is key.	View on Amazon (paid link)
Usr-Tcp232-410S RS232 / RS485 Serial to Ethernet Adapter/IP Device Server Ethernet Converter Support DHCP/DNS (1)	This RS232/RS485 Serial to Ethernet Adapter is perfect for anyone needing to connect serial devices to a network. It’s ideal for IoT projects, industrial automation, or remote monitoring where reliable data transmission is key.	View on Amazon (paid link)
PUSR USR-TCP232-302 Tiny Size RS232 to TCP IP Converter Serial RS232 to Ethernet Server Module Ethernet Converter Support DHCP/DNS (1)	This RS232 to Ethernet converter is perfect for anyone needing to connect serial devices to a network. It’s ideal for device networking, data transmission, and remote monitoring.	View on Amazon (paid link)
Moxa NPort 5150A – 1 Port RS-232/422/485 Serial Device Server, 0 to 60°C Operating Temperature	Moxa NPort 5150A is perfect for IT teams and factory users who need a fast, safe way to link old serial gear to a network. It is also a great fit for people who want easy setup, low power use, and steady work in tough places.	View on Amazon (paid link)
CERRXIAN RS232 to Ethernet Serial Device Server, 1 Port RS 232 DB9 Serial to Ethernet TCP IP Device Server Converter	This device is perfect for engineers, tech teams, and anyone who needs a simple way to reach serial equipment from far away. It works well for people who want fast, clear, and steady links to RS232 devices over a network.	View on Amazon (paid link)
Lantronix UDS1100/UDS2100 Device Server – 1- or 2-Port Serial-to-Ethernet Device Server, RS-232/422/485, 10/100 Ethernet with 15 kV ESD Protection; UDS2100 Supports PoE – UD1100NL2-01	This product is perfect for IT teams and engineers who need fast, safe, and steady links between serial devices and Ethernet networks. It is great for anyone who wants strong security and easy control in tough work settings.	View on Amazon (paid link)

Detailed Reviews

This guide shows the top 10 Serial Device Servers with clear and careful picks. Each one is checked for speed, value, and easy use. Read on to find the best fit with full trust.

1. MOXA NPort 5110-1 Port Serial Device Server, 10/100 Ethernet, RS232, DB9 Male

The MOXA NPort 5110-1 is small and easy to fit. It helps link a serial device to a network. Setup is fast and simple.

It works with Windows, Linux, and macOS. It has Real COM and TTY drivers for smooth use. It also supports TCP/IP and many modes.

You can set up many units with the Windows tool. It also supports SNMP MIB-II for network control.

Pros	Cons
Fast setup with a small, simple build Smooth control with real COM and TTY drivers Flexible use through clear TCP/IP modes Quick setup for many units at once Easy checks with SNMP network tools	No Wi‑Fi, only wired network Setup can feel slow for new users One port limits expansion

Perfect For:

This device is perfect for engineers and IT teams who need a fast, simple way to link serial gear to a network. It’s great for anyone who wants smooth setup and reliable data flow.

Ready to Purchase?

View Price on Amazon (paid link)

2. StarTech 1-Port Serial to Ethernet Adapter, TAA (I13-SERIAL-ETHERNET)

The StarTech 1-Port Serial to Ethernet Adapter connects RS232 serial devices to an IP-based network. It works with POS systems, barcode readers, and more. The DB9 serial port supports speeds up to 921.6Kbps.

It offers a unified ecosystem experience with common management software. You can view and manage devices on any OS easily. The Web UI is simple to use for all device servers.

The adapter has versatile configurations and rugged, mountable housing. It includes power options and ESD protection. Its compact design fits in harsh conditions effortlessly.

Pros	Cons
Fast serial link over IP Easy setup with one clear UI Strong metal case for long life Safe with high ESD protection Flexible modes for many devices	Setup may feel a bit technical for new users Only one port limits larger serial setups No Wi-Fi, needs a wired network

Perfect For:

This StarTech Serial to Ethernet Adapter is perfect for anyone who needs to connect serial devices like POS systems, barcode readers, or sensors to a network. It’s easy to manage, durable, and works smoothly in tough environments.

Ready to Purchase?

View Price on Amazon (paid link)

3. Lantronix UD1100001-01 UDS1100 – One Port Serial (RS232/ RS422/ RS485) to IP Ethernet Device Server – UL864, US Domestic 110VAC – Convert from RS-232, RS-485 to Ethernet

Lantronix UD1100001-01 UDS1100 - One Port Serial (RS232/ RS422/ RS485) to IP Ethernet Device Server - UL864, US Domestic 110VAC - Convert from RS-232, RS-485 to Ethernet

The Lantronix UDS1100 makes it easy to link your serial gear to an Ethernet network. It works fast and keeps your setup simple.

This small, single‑port device server adds remote access to equipment in minutes. It is UL864 compliant and built for steady, safe use.

It is clear. It is quick. It is reliable.

Pros	Cons
Quickly connect any device to Ethernet in minutes. Simple, affordable remote management for non-networked equipment. Versatile mounting options: wall or rail. Reliable performance with Lantronix DSTNI-EX processor.	No Wi-Fi, only wired Ethernet One port limits larger setups Setup may feel technical for new users

Perfect For:

The Lantronix UD1100001-01 UDS1100 is perfect for anyone who needs to connect older equipment to a modern Ethernet network quickly and easily. It’s ideal for businesses or individuals looking to manage devices remotely without costly upgrades.

Ready to Purchase?

View Price on Amazon (paid link)

4. MOXA NPort 5150-1 Port RS-232/422/485 Serial Device Server

The MOXA NPort 5150 is small, fast, and easy to set up. It links your serial gear to your network with ease. It keeps your work smooth and stable.

It uses a standard TCP/IP interface for simple use. It offers clear and quick setup tools.

You can configure it by Telnet, a web page, or a Windows tool. You get strong control and simple access. You enjoy steady RS-485 support with adjustable resistors.

Pros	Cons
Small size makes setup fast and smooth Real COM/TTY support keeps links stable Flexible modes fit many network needs Easy tools speed up device setup Adjustable resistors boost RS‑485 control	Setup can feel a bit slow Web tools may look old Ports are limited

Perfect For:

The MOXA NPort 5150-1 Port RS-232/422/485 Serial Device Server is perfect for engineers and IT professionals who need a compact and reliable solution to connect serial devices to a network. It suits those who want easy setup with real COM/TTY drivers and flexible control via Windows or Linux. If you need simple network management and versatile operation modes in a small package, this device is made for you.

Ready to Purchase?

View Price on Amazon (paid link)

5. PUSR TCP232-306 RS232 RS485 RS422 to Ethernet TCP IP Modbus Gateway Serial Device Server Serial to ethernet converters

The PUSR TCP232-306 is a powerful serial device server. It connects RS232, RS485, and RS422 devices to Ethernet networks. This gateway ensures stable and reliable communication.

It supports Modbus RTU to Modbus TCP conversion and multi-host polling. The device also features a hardware and software watchdog for automatic restarts.

Pros	Cons
Fast and stable with low latency Supports Modbus RTU to TCP conversion Auto restart with hardware and software watchdog 10/100Mbps Ethernet with Auto MDI/MDIX Works with RS232, RS485, and RS422 ports	No Wi-Fi support, limiting wireless connectivity options. Requires technical setup, not plug-and-play friendly. No built-in power supply, external adapter needed.

Perfect For:

This product is perfect for anyone needing to connect serial devices to an Ethernet network. It’s ideal for industrial or automation setups where reliable and stable communication is key.

Ready to Purchase?

View Price on Amazon (paid link)

6. Usr-Tcp232-410S RS232 / RS485 Serial to Ethernet Adapter/IP Device Server Ethernet Converter Support DHCP/DNS (1)

This serial device connects your tools to the web. It uses a fast CPU to send data.

It works in hot or cold rooms. You can set it up with ease. It uses very low power to run.

Pros	Cons
Easy setup with clear web tools Strong dual serial support Fast data flow with low power use Safe links with SSL/TLS Works with Modbus for smooth control	Setup can feel a bit complex for new users No Wi‑Fi, needs a wired Ethernet link Web UI may seem plain and not modern

Perfect For:

This RS232/RS485 Serial to Ethernet Adapter is perfect for anyone needing to connect serial devices to a network. It’s ideal for IoT projects, industrial automation, or remote monitoring where reliable data transmission is key.

Ready to Purchase?

View Price on Amazon (paid link)

7. PUSR USR-TCP232-302 Tiny Size RS232 to TCP IP Converter Serial RS232 to Ethernet Server Module Ethernet Converter Support DHCP/DNS (1)

This tiny RS232 to Ethernet converter makes data flow fast and smooth. It links RS232 and TCP/IP with simple, clear, two-way transmission.

It supports DHCP, DNS, and easy setup. It keeps your link steady. It stops dead connections.

It works in TCP, UDP, and HTTPD modes. It handles up to 16 clients. It runs well in both LAN and wide networks.

Pros	Cons
Tiny size, big impact – converts RS232 to Ethernet effortlessly. Auto-MDI/MDIX and DHCP support for plug-and-play simplicity. Bidirectional data transmission ensures reliable connectivity. Multiple work modes for flexible device networking.	Limited client connections in TCP Server mode (max 16). No built-in Wi-Fi, requires wired Ethernet connection. Basic security features, lacks advanced encryption options.

Perfect For:

This RS232 to Ethernet converter is perfect for anyone needing to connect serial devices to a network. It’s ideal for device networking, data transmission, and remote monitoring.

Ready to Purchase?

View Price on Amazon (paid link)

8. Moxa NPort 5150A – 1 Port RS-232/422/485 Serial Device Server, 0 to 60°C Operating Temperature

This compact device server keeps your serial gear online with ease. It runs cool and steady in tough spots.

It uses only 1 W of power. Setup takes just three quick steps. Surge protection keeps your lines safe.

You get real COM/TTY drivers and support for up to 8 TCP hosts. The standard TCP/IP interface makes every link smooth. This small unit delivers strong, simple, secure control.

Pros	Cons
Low power use keeps costs down Fast setup with simple web steps Strong surge protection for safe use Secure install with screw connectors Supports many hosts with flexible TCP modes	Limited to 1 port, not ideal for multi-device setups. No built-in Wi-Fi, requires wired Ethernet connection. Basic web interface, lacks advanced management tools.

Perfect For:

Moxa NPort 5150A is perfect for IT teams and factory users who need a fast, safe way to link old serial gear to a network. It is also a great fit for people who want easy setup, low power use, and steady work in tough places.

Ready to Purchase?

View Price on Amazon (paid link)

9. CERRXIAN RS232 to Ethernet Serial Device Server, 1 Port RS 232 DB9 Serial to Ethernet TCP IP Device Server Converter

The CERRXIAN RS232 to Ethernet Serial Device Server lets you connect and manage serial devices remotely. It bridges RS232 and Ethernet for seamless communication. Use it to control devices over an IP network.

It supports fast data rates up to 230400bps and works with multiple control modes. Its rugged design ensures reliability in any environment.

This converter is widely compatible with Windows systems and works with various devices. It’s ideal for CNC machines, printers, and more. Contact us if you need a driver.

Pros	Cons
Easy remote access for serial gear Fast link from RS232 to Ethernet Many control modes for simple setup Strong metal case for long use Works with wide range of devices	Not ideal for casual users; designed for professional setups only May not support very high-speed data transfer needs Requires technical knowledge for setup and configuration

Perfect For:

This device is perfect for engineers, tech teams, and anyone who needs a simple way to reach serial equipment from far away. It works well for people who want fast, clear, and steady links to RS232 devices over a network.

Ready to Purchase?

View Price on Amazon (paid link)

10. Lantronix UDS1100/UDS2100 Device Server – 1- or 2-Port Serial-to-Ethernet Device Server, RS-232/422/485, 10/100 Ethernet with 15 kV ESD Protection; UDS2100 Supports PoE – UD1100NL2-01

Lantronix UDS1100/UDS2100 Device Server - 1- or 2-Port Serial-to-Ethernet Device Server, RS-232/422/485, 10/100 Ethernet with 15 kV ESD Protection; UDS2100 Supports PoE - UD1100NL2-01

The Lantronix UDS1100/UDS2100 is a device server. It links serial gear to Ethernet. It is easy to use.

It supports RS-232, RS-422, and RS-485. The UDS2100 also supports PoE.

It has 15 kV ESD protection. It also offers secure management and encrypted communications.

Pros	Cons
Connects serial devices to Ethernet with 15 kV ESD protection. Supports PoE for powering devices efficiently. Secure communications with encrypted data and management. Reliable with Lantronix’s limited warranty and technical support.	High price for small setups Hard to set up for new users Only 1 or 2 ports limits growth

Perfect For:

This product is perfect for IT teams and engineers who need fast, safe, and steady links between serial devices and Ethernet networks. It is great for anyone who wants strong security and easy control in tough work settings.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Serial device servers link old gear to new networks. They make data sharing fast and simple. Find your perfect match with our guide.

Factors to Consider When Buying:
– Compatibility: Ensure the server works with your serial devices (RS232, RS485, etc.) and network (Ethernet, TCP/IP).
– Ease of Setup: Look for plug-and-play options or simple configuration tools for quick installation.
– Operating System Support: Check if it works with Windows, Linux, macOS, or other systems you use.
– Port Options: Choose between single-port or multi-port servers based on your needs.
– Power Options: Consider PoE (Power over Ethernet) or low-power devices for energy efficiency.
– Durability: Opt for rugged designs with ESD protection for harsh environments.
– Remote Access: Look for servers with remote management features for easy control.
– Security: Ensure it offers encrypted communications and secure management for safe data transfer.
– Size and Design: Pick compact servers that fit your space and mounting needs.
– Price and Value: Balance cost with features to get the best value for your budget.