Best Serial Adapters of 2026

The BENFEI USB Serial Adapter allows you to connect various serial devices such as modems, barcode scanners, and digital cameras to your computer via a USB port. With a data transfer rate of 1Mbps, it ensures quick communication between your devices. The adapter features a standard USB Type A Male connector to a 9-pin DB9 RS-232 serial connector, making it versatile for different applications. Additionally, the tinned copper conductor and triple shielding provide optimal data transfer performance, making it a reliable choice for your connectivity needs.

The OIKWAN USB Serial Adapter is a versatile tool that connects various serial devices to your computer. It supports multiple operating systems, including Windows, Mac, and Linux, making it easy for you to use with different devices. With its high-quality FTDI chipset, you can expect reliable and fast data transfer rates of up to 1Mbps. The plug-and-play feature simplifies installation, allowing you to start using it right away without any external power supply. Its durable design ensures longevity, making it a handy addition to your tech collection.

The StarTech.com USB to RS232 Adapter is designed for maximised portability, allowing you to convert a USB port into an RS232 DB9 serial port. This is particularly useful for connecting, monitoring, and controlling serial devices. With broad compatibility, you can easily use it with your USB 1.0 or 2.0 ports on Windows, Mac, or Linux systems. Experience fast transfer speeds with a Baud Rate of up to 921.6Kbps, ensuring efficient data transfer. Its lightweight design fits conveniently into your carrying case, making it ideal for professionals who are always on the move.

The StarTech.com RS232 Adapter provides a reliable way to connect legacy serial devices to your computer via USB. With broad compatibility, you can easily integrate it with various operating systems, including Windows, Linux, and Mac OS. The COM retention feature ensures that your assigned serial COM port values are saved, making reconnection hassle-free. Its versatile functionality allows you to monitor and control industrial sensors and even digital signage boards, enhancing your connectivity options.

The SABRENT USB Serial Adapter is designed to connect various serial devices to your computer effortlessly. With its USB to RS232 functionality, you can link devices like modems, cameras, and routers, providing a convenient solution for older technology. The Prolific chipset ensures wide compatibility with numerous operating systems, making it versatile for different users. Its triple-shielding design protects against interference, enhancing data transfer rates for reliable communication. Plus, the easy plug-and-play feature means you can set it up quickly without any hassle.

The DriverGenius USB232A-B-C is a versatile USB-C to RS232 serial adapter cable, ideal for connecting legacy devices to modern systems. With its three status monitoring LEDs, you can easily track data transmission and power status, enhancing your workflow. The 3ft cable length provides flexibility, while the wide compatibility with various devices, such as barcode scanners and medical equipment, ensures it meets your professional needs. This adapter is particularly useful for IT applications in industrial control, logistics, and laboratories.

The PENGLIN DB9 Breakout Board combines a male and female DB9 connector in one handy device, allowing you to easily convert between the two types for serial connections. Its durable construction features a copper base with gold-plated joints on a thickened FR-4 fibre glass PCB, ensuring reliable contact and resistance to oxidation for long-lasting use. This board is versatile, supporting a wide range of serial devices like industrial equipment, cash registers, and modems. Plus, the terminal block design means you can connect wires without soldering, saving you time and effort when testing or setting up RS232 interfaces.

The DriverGenius USB232A-E-A Adapter is ideal for both beginners and experts involved in PLC programming, robot control, data acquisition, and embedded systems. With convenient status monitoring LEDs, you can easily track the connection's activity, simplifying troubleshooting and ensuring seamless data transmission. Its efficient serial specifications guarantee stable performance, even in noisy environments. This product is versatile, supporting various IT applications, making it perfect for users looking to connect legacy hardware with contemporary systems.

The OIKWAN Serial Adapter is designed for seamless data transfer between your PC or laptop with a USB Type-C port and RS-232 devices. Its USB-C transfer rate of up to 1Mbps ensures efficient communication, making it ideal for various industrial applications. You will appreciate the plug-and-play functionality, requiring no external power source or complicated setup. With the FTDI-FT232RL chipset, this adapter guarantees compatibility with multiple operating systems, including Windows and Mac, allowing you to connect easily and reliably.

The StarTech USB to Serial Adapter offers excellent portability with its single cable design, eliminating the need for extra adapters and cables. You can easily convert your USB port into a null modem RS232 DB9 serial port, effectively resolving DTE/DCE conflicts. Its broad compatibility means it works seamlessly with USB 1.0 or 2.0 ports across Windows, Mac, and Linux systems. Additionally, you will appreciate the fast transfer speeds, supporting up to 921.6 Kbps, ensuring efficient data transfer for your devices.