Best Male Serial Adapters of 2026

The JSAUX DisplayPort HDMI Adapter lets you easily connect your DisplayPort-enabled device to an HDMI display with stunning clarity. It supports up to 4K resolution at 30Hz, providing sharp and vibrant visuals for your monitor or TV. If you want smoother motion at lower resolutions, it also supports 2K at 60Hz and 1080p at 120Hz, perfect for gaming or video playback. You won’t need any drivers or software to get started—just plug it in and go, making setup quick and hassle-free. Plus, the adapter’s durable build with gold-plated connectors ensures long-lasting performance and reliable connections for your devices.

The Tripp Lite Keyspan High-Speed USB to Serial Adapter connects a serial device to a USB computer with plug-and-play convenience. It draws power directly from your computer and supports data transfer rates up to 230 Kbps, twice the speed of a standard built-in serial port. The DB9 serial port is seen as a COM port by your computer, and is available for use by any program that accesses COM ports. Additionally, an LED shows adapter status and data activity at a glance.

The OIKWAN USB to RS232 Adapter with FTDI Chipset is a high-quality, reliable and convenient solution for connecting serial devices to your Windows, MAC or Linux system. The latest FTDI chipset ensures fast and stable operation, while the gold-plated USB RS232 connector and PVC cable provide excellent performance and durability. With plug-and-play installation, this USB-powered adapter cable supports a transfer rate of up to 1Mbps and can be used with a wide range of devices, including modems, scanners, printers and more.

The BENFEI USB to RS232 Male Serial Adapter allows you to connect serial devices such as modems, barcode scanners, and PDAs to your computer through a USB port. It features a standard USB Type A Male to Male 9-pin DB9 RS-232 serial connector and has a data transfer rate of 1Mbps. The adapter is compatible with a wide range of platforms, including Windows, MacOS, and Linux, and it comes with a Prolific PL-2303 chipset. The triple shielding and tinned copper conductor ensure the best data transfer rate, and it's powered by the USB port so there's no need for an external power adapter.

The HiLetgo CP2102 USB 2.0 to TTL Module is a stable and reliable serial adapter that allows you to connect your MCU to your computer with ease. It features a standard USB type A male and TTL 5pin connector, with pins for 3.3V, RST, TXD, RXD, GND, and 5V. It supports a wide range of baud rates, from 300 bps to 1.5 Mbps, and is compatible with Windows, Mac OS, and Linux.

The DB9 Null Modem Male to Female Slimline Adapter 2 Pack converts standard straight wired cables to null modem wiring with pin 9 open. Its slimline design reduces leverage strain on computer ports, while the UL grade 94V-0 connector insulator satisfies flammability requirements. Additionally, the screws are removable and reversible for easy installation and flexibility.

The SABRENT USB Serial Adapter is a high-quality cable that allows you to connect your computer to serial devices such as modems, printers, and GPS devices. With a cable length of 6 feet, it provides flexibility in placing your devices. The male thumbscrews on the side connectors ensure a secure connection. This adapter supports remote wake-up and power management, eliminating the need for IRQs and avoiding IRQ conflicts. It also features a 96-byte buffer for efficient data transfer. Compatible with USB Specification v1.1(0) and USB CDC v1.1, USB 2.0, it offers seamless compatibility with various devices. With the SABRENT USB Serial Adapter, you can easily connect and manage your serial devices hassle-free.

The CABLEMAX RS-232 Tester is a handy tool for anyone working with serial connections. It lets you quickly check if your COM port is working by showing signal activity with clear LED lights, so you can easily spot issues. This tester works with any standard 9-pin RS-232 serial port, making it versatile for different devices. You don’t need any extra power source, which means you can use it on the go or in places without easy access to power. Plus, it’s super simple to use—just plug it in and start testing right away, no setup or drivers needed.

The ANMBEST DB9 Breakout Connector is designed to make your serial device connections easier and more reliable. Its pure copper plated joints and solid soldering ensure strong, durable contacts that last, so you won’t have to worry about connection issues. This connector is user-friendly, requiring no soldering or special tools, which means you can quickly set it up without hassle. It works with a wide range of devices, including computers, barcode machines, and industrial instruments, giving you great versatility. Plus, it comes with cable pressing plates and a non-slip shell to keep your wires secure and stable during use, adding extra convenience and peace of mind.

The OIKWAN USB RS232 Adapter is a handy tool that helps you connect your computer to various serial devices with a 9-pin female RS232 interface. Before buying, make sure the 9-pin male connector fits your device to avoid compatibility issues. This adapter is not a VGA cable, so it’s designed specifically for serial communication. It supports many devices like cash registers, scanners, and industrial machines, making it versatile for different uses. Plus, it works with multiple operating systems, including Windows, Mac OS, and Linux, giving you flexibility no matter your setup. Just download the driver from the official FTDI or Cisco website to get started easily.