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Best Female-Female Modem Cables of 2026

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Mike Davis

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Female-Female Modem Cables are an essential piece of equipment for connecting two devices with female serial ports. These cables are commonly used to connect modems, printers, and other peripherals to a computer. They come in various lengths and are made with high-quality materials to ensure a secure and stable connection. Additionally, they are easy to install and use, making them a popular choice for both home and office use. With their reliable performance and durability, Female-Female Modem Cables are a must-have for anyone in need of a reliable serial connection.

At a Glance: Our Top Picks

StarTech.com 2m Black DB9 RS232 Serial Null Modem Cable Cover #TOP 1

StarTech.com 2m Black DB9 RS232 Serial Null Modem Cable

9.9
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CompuCablePlus DB9 Female Null Modem Cable 3FT Cover #TOP 2

CompuCablePlus DB9 Female Null Modem Cable 3FT

9.8
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StarTech.com 2m Black DB9 RS232 Serial Null Modem Cable Cover #TOP 3

StarTech.com 2m Black DB9 RS232 Serial Null Modem Cable

9.6
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Top 10 Female-Female Modem Cables

#TOP 1

StarTech.com 2m Black DB9 RS232 Serial Null Modem Cable

  • StarTech.com
  • SCNM9FF2MBK
  • Black
  • 6 ft / 2m
StarTech.com 2m Black DB9 RS232 Serial Null Modem Cable Cover

StarTech.com 2m Black DB9 RS232 Serial Null Modem Cable F/F - DB9 Female to Female - 9 pin RS232 Null Modem Cable - 2 meter, Black (SCNM9FF2MBK)

Transfer files between serial devices using this 2m DB9 null modem cable with high-quality shielding to prevent EMI interference. The black cable, which features a female-to-female DB9 connector and a 9-pin RS232 null modem, is ideal for various applications.

9.9
FTB Score
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What We Like

  • Good build quality
  • Works as expected
  • Flexible cable
  • True null modem configuration
  • Easy installation
#TOP 2

CompuCablePlus DB9 Female Null Modem Cable 3FT

CompuCablePlus DB9 Female Null Modem Cable 3FT Cover

CompuCablePlus Null Modem Cable Shielded, Molded, Beige (DB9 to DB9, Female to Female, 3 Feet)

The CompuCablePlus Null Modem Cable is designed with two DB9 female connectors, making it easy for you to connect devices that require this specific interface. Its 28 AWG conductor with seven strands plus a drain wire ensures reliable signal transmission, which helps maintain strong communication between your devices. At 3 feet long, this cable is perfect for short-distance connections, keeping your setup neat and manageable. With the null modem design, you can directly connect two serial devices without needing a modem, simplifying your connections and saving you extra equipment costs.

9.8
FTB Score
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What We Like

  • DB9 female connectors
  • 28 AWG conductor
  • 3 feet length
  • Null modem design
  • Shielded cable
#TOP 3

StarTech.com 2m Black DB9 RS232 Serial Null Modem Cable

  • StarTech.com
  • SCNM9FM2MBK
  • Black
  • 1 Count (Pack of 1)
StarTech.com 2m Black DB9 RS232 Serial Null Modem Cable Cover

StarTech.com 2m Black DB9 Null Modem Serial Cable, Male to Female

This 2m DB9 Null Modem Cable by StarTech.com allows you to connect your serial devices and transfer files effortlessly. The cable features a DB9 male to female connector and is designed for RS232 Null Modem usage. It is perfect for users who need to transfer data between two devices without a modem. This modem cable is an ideal solution for users who need to connect their serial devices to a computer for data transfer.

9.6
FTB Score
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What We Like

  • High build quality
  • Reliable data transmission
  • Fast delivery
  • Affordable price
  • Gold-plated connectors
#TOP 4

Your Cable Store 25ft Null Modem Cable

Your Cable Store 25ft Null Modem Cable Cover

Your Cable Store 25 Foot DB9 9 Pin Serial Port Null Modem Cable Female/Female RS232

This modem cable is 25 feet long and has DB9 female connectors on each end. It is a null modem cable and is ROHS compliant. This cable is perfect for connecting two serial devices together, such as a printer and computer.

9.6
FTB Score
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What We Like

  • 25 feet long
  • DB9 female connectors on each end
  • Null modem cable
#TOP 5

StarTech 10ft Serial/Null Modem Cable

  • STARTECH.COM
  • SCNM925FM
  • Gray
  • 1 Count (Pack of 1)
StarTech 10ft Serial/Null Modem Cable Cover

StarTech.com 10 ft Cross Wired DB9 to DB25 Serial Null Modem Cable - F/M - Null Modem Cable - DB-9 (F) to DB-25 (M) - 10 ft (SCNM925FM)

The StarTech.com 10 ft Cross Wired DB9 to DB25 Serial Null Modem Cable is a reliable and durable cable designed for connecting a 9-pin serial device to a 25-pin serial port, or transferring files from PC-to-PC via a serial connection. It features molded connectors for strain relief and high-quality shielding to prevent EMI. The 10ft cable is gray in color and made of PVC. Please note that this is a cross-wired/null modem cable and may not work for straight-through connections.

9.6
FTB Score
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What We Like

  • Reliable RS232 null modem function
  • Sturdy, well-built construction
  • Works with vintage equipment
  • Classic grey retro design
  • Fast shipping
#TOP 6

DTech DB9 RS232 Serial Cable Female to Female Null Modem Cord

  • DTECH
  • DT-9006C 2M
  • Black
DTech DB9 RS232 Serial Cable Female to Female Null Modem Cord Cover

DTECH DB9 RS232 Serial Cable Female to Female Null Modem Cord Cross TX/RX line for Data Communication (6 Feet, Black)

The DTech DB9 RS232 Serial Cable is a 6ft null modem cable that extends a COM port connection between your computer and old devices with RS-232 compatible. The 9-pin serial port cord is wired with only TX/RX data and signal ground wires connected. The cable is easy to solder and connect to pins with standard wire color code. With a shielded DE9 female RS232 cable with AL foil, this crossover cable is perfect for hooking up RS232C equipment like scanners, printers, and microcontrollers.

9.4
FTB Score
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What We Like

  • Reliable serial connection
  • Compatible with multiple devices
  • Easy terminal setup
  • Clear product labeling
#TOP 7

DTech DB9 RS232 Serial Cable Female to Female Null Modem Cord

  • DTECH
  • DT-9007C-0.5M
  • Black
  • 1.5ft
DTech DB9 RS232 Serial Cable Female to Female Null Modem Cord Cover

DTECH DB9 RS232 Serial Cable Female to Female Null Modem Cord Full Handshaking 7 Wire Crossover for Data Communication (1.5 Feet, Black)

DTech DB9 RS232 Serial Cable Female to Female Null Modem Cord is a 1.5ft female to female serial null modem cable that connects your computer to devices with COM port RS-232 compatible interface. The cable is wired as a 9 pin serial port Null-Modem cord that 2-3, 4-6, 7-8 line are cross-linked, and it comes with a standard shielded DE9 rs232 cable female to female with AL foil. Each end of the cable is equipped with screws to ensure an easy and solid connection for stable serial cross-data communication. The wires inside are of 30AWG gauge and easy to solder to, and they connect to the pins in the order of the standard wire color code. The cable is perfect for hooking up your PC laptop to some old RS232C equipment like a scanner, modem, printer, plotter, camera, barcode/embroidery machine, touchscreen, microcontroller, factory test equipment.

9.3
FTB Score
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What We Like

  • Equipped with screws on each end for easy and solid connection
  • Short cable length is perfect for connecting to old RS232C equipment
  • Wired as a 9 pin serial port Null-Modem cord, 2-3, 4-6, 7-8 line are cross-linked, standard shielded DE9 rs232 cable female to female with AL foil
#TOP 8

StarTech.com 1m Black DB9 RS232 Serial Null Modem Cable F/F

  • StarTech.com
  • SCNM9FF1MBK
  • Black
  • 1 Count (Pack of 1)
StarTech.com 1m Black DB9 RS232 Serial Null Modem Cable F/F Cover

StarTech.com 1m Black DB9 RS232 Serial Null Modem Cable F/F - DB9 Female to Female - 9 pin RS232 Null Modem Cable - 1 meter, Black

Transfer files between your serial devices with ease using the StarTech DB9 Null Modem Cable. Measuring 1 meter in length, this DB9 female to female cable offers a reliable RS232 connection. The 9 pin null modem cable provides a simple solution for connecting two DTE (Data Terminal Equipment) devices together, without the need for a full-fledged modem. This makes it a practical choice for file transfers between computers, printers, modems, and other serial devices. The black color adds a sleek and professional touch to your setup.

9.1
FTB Score
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What We Like

  • Good build quality
  • Reliable data transfer
  • Ideal for portable devices
  • Easy to use
  • Supports standard RS232 protocols
#TOP 9

DTech DB9 RS232 Serial Cable Male to Female Null Modem Cord

  • DTECH
  • DT-9007B-5M
  • Female to Female
  • 15ft
DTech DB9 RS232 Serial Cable Male to Female Null Modem Cord Cover

DTECH DB9 RS232 Serial Cable Null Modem Male to Female Cord Full Handshaking 7 Wire Crossover for Computer Switch Laptop Router Data Communication (15 Feet, Black)

The DTech DB9 RS232 Serial Cable is a 15ft male to female null modem cord with full handshaking and 7 wire crossover, which connects your computer to a device with a COM port RS-232 compatible interface. This standard shielded DE9 rs232 cable is wired as a 9 pin serial port null-modem cord that has a DB9 female to male connector on each end equipped with screws to ensure an easy and solid extension connection for stable serial cross data communication. This 15 feet long null serial adapter is perfect for connecting your PC or laptop to some old RS232C equipment like a scanner, printer, or microcontroller.

8.9
FTB Score
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What We Like

  • Equipped with screws to ensure an easy and solid extension connection
  • Standard shielded DE9 rs232 cable male to female extender with AL foil
  • Wired as a 9 pin serial port Null-Modem cord that 2-3, 4-6, 7-8 line are cross linked
#TOP 10

StarTech.com DB9 RS232 Serial Null Modem Cable

  • StarTech.com
  • SCNM9FM1MBK
  • Black
  • 1 Count (Pack of 1)
StarTech.com DB9 RS232 Serial Null Modem Cable Cover

StarTech.com 1m Black DB9 RS232 Serial Null Modem Cable F/M - DB9 Male to Female - 9 pin Null Modem Cable - 1x DB9 (M), 1x DB9 (F), Black (SCNM9FM1MBK)

StarTech.com Null Modem Cable allows you to connect your serial devices and easily transfer files. This 1m DB9 cable has a male to female connection, specifically designed for RS232 communication. The null modem feature enables direct communication between devices without the need for a modem. With this cable, you can efficiently link your equipment for seamless data transfer, making it a convenient solution for your connectivity needs.

8.9
FTB Score
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What We Like

  • Direct device communication
  • 1m length
  • Male to female connection

Editor's Notes

During our female-female modem cable research, we found 24 female-female modem cable products and shortlisted 10 quality products. We collected and analyzed 11,655 customer reviews through our big data system to write the female-female modem cables list. We found that most customers choose female-female modem cables with an average price of $11.08.

The female-female modem cables are available for purchase. We have researched hundreds of brands and picked the top brands of female-female modem cables, including StarTech.com, CompuCablePlusUSA, Your Cable Store, DTECH. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by

Mike Davis Avatar

Mike Davis

Mike Davis is a professionally trained electrician with six years of working experience in the electronics industry. He has written an array of web and mobile-based articles for e-magazines and blogs. He loves trying out some novel and popular gadgets and his expertise is in the areas of electronics and computers which is built over many years of working and personal experiences.