Best Db9 Female Serial Adapters of 2026

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 OIKWAN USB Serial Adapter is designed to connect your serial DB9 devices, like modems or printers, to a USB port on your computer. It features a 9-pin female connector, ensuring compatibility with your devices. With its FTDI chipset, this adapter supports a wide range of operating systems, including Windows and Mac OS, making it versatile for various users. The plug-and-play functionality means you can easily start using it without additional power sources, as it draws power directly from your computer. This convenience allows you to streamline your connections quickly and efficiently.

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 provide a reliable and durable connection for your serial devices. Its copper-plated contacts ensure strong conductivity and long-lasting performance, so you won’t have to worry about poor connections. You’ll appreciate the easy setup since no soldering is needed, making wiring quick and hassle-free. The connector works with a wide range of serial equipment, from computers to industrial instruments, giving you great flexibility. Plus, it includes a cable pressing plate that keeps your wires securely in place, preventing accidental disconnections while you work.

The Arnorin DB9 Adapter is designed to convert standard straight wired cables into null modem wiring, making it easier for you to connect devices that require this specific setup. With its gold contact plating, you can expect reliable connections, even after multiple uses. The slimline design minimizes strain on your computer ports, protecting them from potential damage. Additionally, the UL grade 94V-0 connector insulator ensures safety by meeting flammability standards, giving you peace of mind while using it. This adapter is a smart choice for anyone needing efficient and secure data transfer.

The DTECH DB9 Adapter is a convenient, solderless solution for creating custom DB-9 RS232 connections. With clearly labeled signal pins on both sides of the PCB, you can quickly connect and troubleshoot your devices with ease. Its sturdy construction features pure copper joints and gold-plated contacts, ensuring reliable data communication. Additionally, the compact case is designed for versatility, accommodating various cable sizes and tail tubes, making it suitable for a wide range of applications such as CNC controllers, digital cameras, and more.

The Arnorin DB9 Adapter is designed to convert standard cables to null modem wiring, making it easier for you to connect devices that require this specific configuration. With gold contact plating, you can expect reliable connections even after multiple uses, ensuring your data transfers are smooth and uninterrupted. Its slimline design minimizes strain on your computer ports, which helps to prolong their lifespan. Additionally, the UL grade 94V-0 connector insulator meets flammability safety standards, providing peace of mind during use. These features combine to offer a practical and durable solution for your serial connection needs.

The DTech USB to Serial Adapter with FTDI Chipset allows you to connect a PC without a serial port to a serial device via USB, adding a 9 pin port to your laptop or desktop. This portable adapter is USB-powered and designed for easy connectivity for serial plug devices. It is compatible with Windows 11, 10, 8, 7, Mac OS8 or higher, and Linux 2.4.0 and later. The 10ft cable has a standard pinout, and the high-performance quality processor chip (FT232 Chipset) makes it one of the most reliable adapters on the market.

The DTech 6ft USB to RS232 DB9 Female Adapter Cable enables you to connect serial devices to your computer via USB. The adapter is compatible with devices such as PCs, routers, GPS systems, barcode scanners, modems, and digital cameras, among others. The cable features a standard USB Type A Male connector and a 9-pin DB9 Female RS-232 serial connector. It also includes the Prolific PL-2303 chipset, which ensures compatibility with a range of systems, including Windows 11, 10, 8, 7, XP, Vista, 2000, 98, MacOS8 or higher, Linux 2.4.0 and later, and other platforms. Please note that the adapter is only compatible with devices that have a 9-pin Male Port.

The ANMBEST Serial Ethernet Adapter is designed to help you connect RS232 ports using CAT5, CAT5E, or CAT6 cables, allowing signal transmission up to 100 feet. Its RJ45 pin configuration ensures compatibility with various devices, making it easy to link older serial devices to modern network setups. The adapter features a high-quality alloy port that minimizes interference, enhancing your connection stability. Made from durable ABS material, it is built to withstand wear and tear, ensuring long-lasting use for your networking needs.