Best USB 2.0 Serial Adapters of 2025

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.

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 AYMBH RS232 Adapter allows you to convert USB 2.0 to a reliable RS232 DB9 9-pin male serial port. This seamless connectivity ensures you can connect PDAs, GPS, modems, and more with ease. With its high-performance 340 chipset, you can enjoy stable data transfer rates of up to 115.2 Kbps, making it suitable for various devices. The plug and play feature means you can quickly install it on Windows, Mac, or Linux systems without needing additional drivers, providing you with a hassle-free experience.

The Kasoud USB RS232 Adapter allows you to connect various serial devices, such as modems and digital cameras, via a USB port at a rapid data transfer rate of 1Mbps. This product includes a VGA SVGA female to female adapter, making it incredibly versatile for connecting to monitors and projectors. It features tinned copper conductors and triple shielding, ensuring optimal data transfer. With its plug-and-play design, you can easily set it up without the need for an external power source.

The DTECH USB to Serial Adapter allows you to connect a PC or laptop without a DB9 port to an RS232 serial device. With a handy 10ft length, this USB-powered cable eliminates the need for a bulky power supply, making it convenient for data communication. Its Prolific PL-2303 chipset ensures compatibility with a wide range of systems, including Windows and MacOS. You can easily connect various serial devices like barcode scanners and digital cameras, enhancing your productivity and connectivity.

The kenable RS232 Adapter is a versatile tool designed to facilitate connections between devices. With its Quad USB 2.0 capability, you can easily connect multiple devices at once, providing you with greater flexibility in your workspace. The 4-port configuration allows for simultaneous connections, saving you the hassle of constantly plugging and unplugging devices. Additionally, its user-friendly design ensures that you can set it up quickly, making it an ideal solution for those who need reliable serial connections without the complexity.

The StarTech.com USB Serial Adapter is a versatile solution for connecting serial devices. With two RS-232 ports, it allows you to connect multiple devices simultaneously, increasing your efficiency. The USB 2.0 interface ensures fast data transfer, making it ideal for industrial applications. Its rugged metal construction adds durability, ensuring it can withstand demanding environments. This product is perfect for users needing reliable connections for their serial equipment.

The YINETTECH DB9 Converter enables seamless connectivity between USB and RS232 serial ports. It features a USB 2.0 to 9 Pin Male RS232 design, ensuring compatibility with a wide range of operating systems, including Windows 98 to 8 and Mac OS V8.6. With its support for remote wake-up and power management, you can efficiently manage your devices. Additionally, the RS232 serial interface offers reliable communication, making this adapter a practical choice for anyone needing to bridge the gap between different port types.

The DTECH USB to RS232 Adapter is a versatile cable that allows your computer to communicate with various serial devices equipped with a 9-pin female RS232 interface. This means you can easily connect devices such as routers, GPS units, and barcode scanners to your PC. With support for multiple operating systems, including Windows 11 and Mac, the adapter ensures compatibility across devices. Its high-performance FTDI chipset guarantees reliable communication, making it a dependable choice for your serial connection 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.