Best Serial Servers of 2026

Mike Davis Avatar
Mike Davis
Last Updated: Jan 8, 2026

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

Serial servers are a type of networking device that allows communication between serial devices and a network. They are commonly used in industrial and manufacturing settings where serial devices such as barcode scanners, printers, and sensors need to be connected to a network. Serial servers provide a cost-effective and efficient solution to connect these devices to a network without the need for expensive hardware upgrades or rewiring. They come in various sizes and configurations to suit different needs, and can be easily configured and managed through a web-based interface. Overall, serial servers are an essential tool for businesses looking to streamline their operations and improve productivity.

At a Glance: Our Top Picks

Lenovo ThinkSystem ST250 Tower Server Cover #TOP 1
Lenovo ThinkSystem ST250 Tower Server
ftb score rating icon 9.9
Lenovo ThinkSystem ST50 Tower Server Cover #TOP 2
Lenovo ThinkSystem ST50 Tower Server
ftb score rating icon 9.8
Lenovo ThinkSystem ST50 Server Bundle Cover #TOP 3
Lenovo ThinkSystem ST50 Server Bundle
ftb score rating icon 9.6

Top 5 Serial Servers

Lenovo ThinkSystem ST250 Tower Server

ST25012
Black
Lenovo ThinkSystem ST250 Tower Server Cover
Lenovo ThinkSystem ST250 Tower Server Bundle Including Windows Server 2019, Intel Xeon 3.3GHz CPU, 64GB DDR4 2666MHz RAM, 16TB HDD Storage, JBOD RAID

The Lenovo ST250 Server is designed to support small businesses and remote offices with reliable performance. It runs on Windows Server 2019, providing a familiar and efficient operating system for managing your network and applications. Powered by an Intel Xeon E-2124 quad-core processor with speeds up to 4.3GHz, the server handles demanding tasks smoothly. With 64GB of fast DDR4 memory, you can expect quick data processing and multitasking. The 16TB storage, made up of four 4TB hard drives, offers plenty of space for your files and backups. This setup is ideal if you need a dependable and expandable server for your growing business needs.

What We Like
Powerful Intel Xeon CPU
Large 64GB DDR4 Memory
High 16TB Storage Capacity
Windows Server 2019 OS
#TOP 2

Lenovo ThinkSystem ST50 Tower Server

ST502
Black
2) 64GB, 12TB HDD
Lenovo ThinkSystem ST50 Tower Server Cover
Lenovo ThinkSystem ST50 Tower Server Including Intel Xeon 3.4GHz CPU, 64GB DDR4 2666MHz RAM, 12TB HDD Storage, JBOD RAID

The Lenovo ST50 Server is designed for small businesses and remote offices, offering reliable performance in a compact tower form. It features a powerful Intel Xeon E-2124G quad-core processor that runs at 3.4GHz and can boost up to 4.5GHz, giving you the speed needed for multitasking and demanding applications. With 64GB of fast DDR4 memory, you can run multiple programs smoothly without slowdown. The server also provides generous storage with three 4TB SATA hard drives, totaling 12TB, ideal for storing large amounts of data. This setup supports JBOD RAID, allowing you to manage your drives flexibly according to your needs.

What We Like
Powerful Intel Xeon CPU
Large 64GB DDR4 RAM
High 12TB Storage Capacity
Compact Mini Tower Design
#TOP 3

Lenovo ThinkSystem ST50 Server Bundle

ST504
Black
Lenovo ThinkSystem ST50 Server Bundle Cover
Lenovo ThinkSystem ST50 Tower Server Bundle Including APC BR1500MS 1500VA UPS, Intel Xeon 3.4GHz CPU, 64GB DDR4 2666MHz RAM, 12TB HDD Storage, JBOD RAID

The Lenovo ST50 Server is designed to support small businesses and remote offices with reliable performance and essential backup power. Powered by an Intel Xeon E-2124G quad-core processor, it delivers strong processing speed that can handle demanding tasks efficiently. With 64GB of DDR4 memory running at 2666MHz, this server offers smooth multitasking and quick data access. The 12TB storage, made up of three 4TB SATA drives in JBOD RAID, provides ample space for your important files and data. Plus, the included APC 1500VA UPS protects your system from power outages and surges, keeping your work safe and uninterrupted.

What We Like
Powerful Intel Xeon CPU
Large 64GB DDR4 RAM
High-capacity 12TB storage
Reliable APC UPS backup
#TOP 4

Supermicro Xeon D-1521 1U Rackmount Server

RS-SMX104C2N-FIO
Black
Supermicro Xeon D-1521 1U Rackmount Server Cover
Supermicro Xeon D-1521 Mini 1U Rackmount, Front I/O,10GbE, IPMI, RS-SMX104C2N-FIO

The Supermicro Xeon D-1521 offers a compact 1U rackmount design that helps you save valuable space in your server room. Powered by an Intel Xeon processor with 4 cores running at 2.7 GHz, it delivers strong performance for demanding tasks. With 10GbE networking, you get fast and reliable data transfer speeds, which is essential for handling large files or high traffic. The system also includes IPMI and RS-232 ports, allowing you to manage your server remotely with ease, saving you time and effort. This makes the Supermicro Xeon D-1521 a practical choice for efficient and flexible server management.

What We Like
Reliable hardware performance
Excellent technical support
Versatile server applications
Easy maintenance
Good value
#TOP 5

Lenovo ThinkSystem ST250 Tower Server

ST2507
Black
1) 32GB, 8TB HDD
Lenovo ThinkSystem ST250 Tower Server Cover
Lenovo ThinkSystem ST250 Tower Server Including Intel Xeon 3.3GHz CPU, 32GB DDR4 2666MHz RAM, 8TB HDD Storage, JBOD RAID

The Lenovo ST250 Server is designed for small businesses and remote offices, offering reliable performance with its Intel Xeon E-2124 quad-core processor running at 3.3GHz and capable of boosting up to 4.3GHz. You get 32GB of fast DDR4 memory, which helps your applications run smoothly and efficiently. The server includes 8TB of storage spread across four 2TB SATA hard drives, providing ample space for your data and files. Its JBOD RAID setup allows you to configure storage flexibly, giving you control over your data management and security. This server is a solid choice if you need dependable and scalable computing power.

What We Like
Powerful Intel Xeon CPU
Large 32GB DDR4 RAM
8TB high-capacity storage
Flexible JBOD RAID setup
Buying Guide Image

Frequently Asked Questions (FAQs)

1. How does a serial port server work?

The serial server acts as an intermediary for a locally connected peripheral device by providing cabled network connectivity. This lets organizations make use of legacy devices which are not equipped with native networking capabilities. Serial to Ethernet device servers work by creating virtual serial ports.

2. How do I connect to a serial device server?

Connect the serial port of serial device server to the interface of the device, then connect the RJ45 interface of the serial device server to the router or computer, then electrify the serial device server.

3. What is a Moxa server?

Moxa's terminal servers are equipped with the specialized functions and security features needed to establish reliable terminal connections to a network, and can connect various devices such as terminals, modems, data switches, mainframe computers, and POS devices to make them available to network hosts and process.

4. What is a serial port on a computer?

A serial port is an interface that allows a PC to transmit or receive data one bit at a time. It is one of the oldest types of interfaces and at one time was commonly used to connect printers and external modems to a PC.

Editor's Notes

During our serial server research, we found 24 serial server products and shortlisted 5 quality products. We collected and analyzed 3,473 customer reviews through our big data system to write the serial servers list. We found that most customers choose serial servers with an average price of $2,228.20.

The serial servers are available for purchase. We have researched hundreds of brands and picked the top brands of serial servers, including Lenovo, Supermicro. The seller of top 1 product has received honest feedback from 226 consumers with an average rating of 4.1.

Written by
Mike Davis Avatar

Mike Davis is a professionally trained electrician with six years of working experience in the electronics industry. He has written an array of web and mobile-based articles for e-magazines and blogs. He loves trying out some novel and popular gadgets and his expertise is in the areas of electronics and computers which is built over many years of working and personal experiences.