Best RJ45 Serial Adapters of 2025

The C2G Serial Adapter is an efficient solution for connecting various serial devices like printers, terminals, and modems. Its durable design ensures reliable performance, making it ideal for both office and home use. You will appreciate the easy identification of connections, thanks to its color-coded structure, which simplifies your cable management. This adapter is a cost-effective choice for running client-server applications, allowing you to maintain a neat and organized workspace while connecting essential serial equipment with ease.

The DTech DB9 to RJ45 Serial Adapter is an affordable and straightforward solution for serial data communication between RS232 COM port devices with standard 9 Pin D-sub RS-232 Devices including computers, printers, and routers. The bi-directional converter can extend RS232 serial signals up to 65ft using a pair of DB9 to RJ45 socket couplers. The adapter features thumbscrews for secure connection and is compatible with inexpensive cat5 or cat6 RJ45 network cables.

The ANMBEST DB9 Ethernet Adapter allows you to easily transmit signals between RS232 ports using standard CAT5, CAT5E, or CAT6 network cables, with a range of up to 100 feet. This flexibility means you can connect devices that use different interfaces without hassle. The adapter features a well-defined pin configuration that ensures compatibility, making setup straightforward. Additionally, its high-quality alloy construction minimizes interference, while the durable ABS material enhances wear-resistance, ensuring a long-lasting connection. This product is ideal for integrating legacy serial devices into modern Ethernet networks.

The SHANFEILU Serial Adapter is designed for seamless communication between RS232 devices using RJ45 connectors. It requires pairing a DB9 male with a DB9 female adapter, allowing you to extend RS232 serial data up to 65 feet without interruption. This adapter supports various devices, including computers, printers, and monitors, ensuring compatibility with your existing equipment. With its durable design featuring molded strain relief connectors, you can easily plug and unplug without worry. Plus, the double-shielded ports minimize interference, providing clearer signal transmission. Enjoy a hassle-free setup with its plug-and-play functionality, eliminating the need for additional drivers or power sources.

The ECSiNG DB9 to RJ45 adapter allows you to connect standard RS-232 devices to an Ethernet network, making it ideal for various devices like computers, printers, and routers. With a maximum connection distance of 65.6 feet, you can enjoy flexibility in your setup. The high-quality materials used in this adapter minimize interference and ensure a stable connection, enhancing your data transmission experience. Additionally, the molded strain relief connectors provide durability while making it easy for you to plug and unplug your devices securely.

The XMSJSIY DB9 RS232 to RJ45 Extender, also known as the XMSJSIY Extender, is a versatile adapter designed for TCP/IP network interfaces with serial port network function. It allows for bidirectional transparent transmission of both serial data and network data. This extender is compatible with various devices such as desktop computers, digital machine tools, PDAs, and barcode scanners that have a standard DB9 serial port. The extender offers stable and reliable performance, with a maximum distance of 66ft. It features a high-quality alloy transmission port that reduces transmission impedance and interference, resulting in improved data transmission rate and quality. The environmentally friendly PVC material and integral injection molding make it super wear-resistant. The XMSJSIY Extender requires no external power, making it easy and convenient to use. It is recommended to use this extender within a distance of 1-15 meters. It can be used alone or in pairs, with options for female to female, male to female, and male to male connections.

The ECSiNG Serial Adapter allows you to connect standard 9-pin RS-232 devices like computers, printers, and routers to a TCP/IP network. With a maximum distance of 65.6 feet, you can easily set up your devices without worrying about proximity. This adapter features a dual-way conversion system, enabling smooth bi-directional transmission of both serial and network data. Additionally, its high-quality construction minimizes crosstalk and noise, ensuring a reliable connection. The molded strain relief connectors provide durability, while the finger-tightened screws ensure a secure fit, making your setup hassle-free.

LFHUKEJI RS232 Adapter is a versatile device that allows you to connect the serial port of your equipment to the RJ45 port on routers. With its dual-way conversion and support for bi-directional transparent transmission, it enables seamless communication between serial data and network data. This adapter is compatible with most routers on the market and is ideal for extending your network connection up to a maximum distance of 65.6FT. The adapter features nickel-plated and oxygen-free copper transmission ports that minimize crosstalk and protect against electromagnetic interference. It is engineered with molded strain relief connectors for durability and finger-tightened screws for a secure connection. With its double-shielded standard, LFHUKEJI RS232 Adapter ensures reliable signal transmission without interference.

The ANMBEST DB25 Ethernet Adapter allows you to transmit signals between your RS232 ports and Ethernet networks using CAT5 or CAT5E cables, extending up to 100 feet. Its pin configuration is designed to convert DB25 connections to RJ45, making it easy for you to connect legacy serial devices to modern network setups. With high-quality alloy ports, it minimizes transmission interference, ensuring a reliable connection. The durable ABS material also adds to its longevity, making it a great choice for various networking applications.

The Jienk DB9 RJ45 Adapter is designed to transform your DB9 connector into an RJ45 female connector, allowing you to set up tailored pin configurations for various devices. This flexibility is ideal for connecting terminals, serial printers, modems, and POS systems. With high compatibility, you can use it with printers, mice, keyboards, and network devices. The adapter features a durable DB9 female plug with gold-coated pins, ensuring a reliable connection. Additionally, when extending serial connections over long distances, using networking cables with this adapter minimizes signal loss and interference, enhancing your overall connectivity experience.