Best Female Serial Cables of 2026

Name: StarTech.com 2m Black DB9 Female to Female Cable
Brand: StarTech

Kenneth Collin

Last Updated: 4 Feb 2026

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Female serial cables are a type of connector used to transmit data between devices, such as computers, printers, and scanners. These cables typically feature a female connector on one end and a male connector on the other, allowing for easy connection to a variety of devices. They are available in a range of lengths and are an essential tool for those who need to transfer data from one device to another quickly and efficiently. With their reliable performance and ease of use, female serial cables are a must-have for anyone who relies on technology to get things done.

At a Glance: Our Top Picks

#TOP 1

StarTech.com 2m Black DB9 Female to Female Cable

9.9

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#TOP 2

StarTech.com 2m Black DB9 Serial Extension Cable

9.8

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#TOP 3

DTech DB9 RS232 Serial Null Modem Cable

9.6

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Top 7 Female Serial Cables

#TOP 1 Best StarTech.com Serial Cable

StarTech.com 2m Black DB9 Female to Female Cable

StarTech
SCNM9FF2MBK
Black
6 ft/2 m

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)

The StarTech.com DB9 Null Modem Cable is a 2-metre black cable designed for connecting your serial devices efficiently. With its female-to-female configuration, you can easily transfer files between devices. The high-quality shielding effectively prevents electromagnetic interference, ensuring a stable connection. This means you can enjoy reliable data transmission without interruptions, making your tasks smoother and more efficient.

9.9

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What We Like

High-quality shielding
2-metre length
Female-to-female configuration
Prevents EMI interference

#TOP 2

StarTech.com 2m Black DB9 Serial Extension Cable

StarTech
MXT1002MBK
Black
6 ft/2 m

StarTech.com 2m Black Straight Through DB9 RS232 Serial Cable - DB9 RS232 Serial Extension Cable - Male to Female Cable (MXT1002MBK)

The StarTech.com DB9 Serial Cable is designed to enhance your connectivity needs. It features a male and female DB9 connector, making it easy to extend your serial connections. The high-quality shielding effectively prevents EMI interference, ensuring a stable and clear signal for your devices. Additionally, the strain relief molding on the connectors protects against wear and tear, providing you with a durable solution for your serial communication requirements.

9.8

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What We Like

High-quality shielding
Durable strain relief molding
Easy to connect devices
Prevents EMI interference

#TOP 3

DTech DB9 RS232 Serial Null Modem Cable

DTECH
6945279513636
black
0.5m

DTECH DB9 RS232 Serial Null Modem Cable Female to Female Full Handshaking 7 Wire Crossover for Data Communication 0.5M

The DTech RS232 Null Modem Cable is a 1.5ft female to female serial cable designed for seamless data communication. It features a 7 wire type with full handshaking, allowing you to connect your computer to various devices with a COM port RS232 interface. With a standard shielded DE9 female connector on each end, you can ensure a stable and secure connection. Additionally, the 30AWG gauge wires are easy to solder, making custom connections straightforward for your older RS232C equipment.

9.6

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What We Like

Stable data communication
Easy to connect and solder
Compatible with various devices
Full handshaking support
Standard shielded design

#TOP 4

StarTech 3m RS232 Null Modem Cable

StarTech
9FMNM-3M-RS232-CABLE
Black
9.8 ft

StarTech.com 3m RS232 Serial Null Modem Cable, Crossover Serial Cable w/Al-Mylar Shielding, DB9 Serial COM Port Cable Female to Male, Compatible w/DTE Devices, Black, F/M (9FMNM-3M-RS232-CABLE)

The StarTech Null Modem Cable is an essential tool for connecting two DTE devices over a distance of up to 3 metres. Its high-quality construction ensures durability, with tinned wires and aluminium mylar shielding that protect against electromagnetic interference. You will appreciate the screw locking feature, as it prevents accidental disconnections, helping to avoid data loss. Additionally, the cable comes with moulded PVC connectors, which provide strain relief, reducing the risk of damage from bends and twists.

9.5

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What We Like

Flexible setup configuration
Durable and high-quality construction
Prevents accidental disconnections
Reduces risk of damage

#TOP 5

DTECH 0.5m Female to Female DB9 Serial Cable

DTECH
DT-SER-0.5FT-DB9-DB9
Black
0.5m

DTECH 0.5m Serial Cable Female to Female 9 Pin DB9 Port Straight Through (1.5 ft,Black)

The DTECH DB9 Serial Cable is designed to connect your computer to devices with RS-232 compatible COM ports, making data transfer straightforward and reliable. With female-to-female DB9 connectors on each end, it ensures a secure and stable connection thanks to the included screws, preventing accidental disconnections. The cable’s internal 30AWG wires follow the standard colour code, which makes soldering easier if you need to customise or repair the cable. Additionally, it features straight-through pin wiring, maintaining consistent and reliable communication for your devices.

9.4

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What We Like

Secure screw connectors
Standard pin-to-pin wiring
Easy to solder wires
Short 1.5 ft length

#TOP 6

DTech 5M DB9 RS232 Serial Cable Male to Female Null Modem Cord Full Handshaking 7 Wire Crossover

DTech
Gold,Black

DTech 5M DB9 RS232 Serial Cable Male to Female Null Modem Cord Full Handshaking 7 Wire Crossover for Data Communication

Features

15ft Male To Female Serial Null Modem Cable (7 Wire Type And Full Handshaking) Connects Your Computer To Device With COM Port RS-232 Compatible Interface
Wired As A 9 Pin Serial Port Null-Modem Cord That 2-3, 4-6, 7-8 Line Are Cross Linked (TX,RX,RTS, CTS, DTR,DSR Wires Are Connected); Standard Shielded DE9 Rs232 Cable Male To Female Extender With AL Foil
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

9.2

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#TOP 7

CableDeconn USB to RS232 Adapter 2m

CableDeconn
‎C0407201

CABLEDECONN USB to RS232 Adapter with Prolific PL2303 Chipset USB2.0 Male to RS232 Female DB9 Serial Cable 2m 6ft for Windows XP,Windows Vista,7,8,10,Mac OS 10.6 Above Linux

The CableDeconn RS232 Adapter provides an easy way to connect your USB port to RS232 devices. With its plug-and-play installation, you can quickly set it up on various operating systems, including Windows and Mac. This adapter supports a range of devices like modems and barcode scanners, making it versatile for your connectivity needs. Additionally, it offers a data transfer rate of 1Mbbps, ensuring efficient communication between your computer and connected devices.

9.0

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What We Like

Easy plug-and-play installation
Compatible with various devices
High data transfer rate
Supports multiple operating systems

Editor's Notes

During our female serial cable research, we found 306 female serial cable products and shortlisted 7 quality products. We collected and analyzed 28,893 customer reviews through our big data system to write the female serial cables list. We found that most customers choose female serial cables with an average price of £8.82.

The female serial cables are available for purchase. We have researched hundreds of brands and picked the top brands of female serial cables, including StarTech, DTECH, CableDeconn.

Written by

Kenneth Collin

Kenneth Collin graduated from Imperial College, London, at 22. He is a UX/UI designer, a web developer, and a writer, amongst others. At age 14, Kenneth programmed his first app. Kenneth's app served as a remote control for censored devices. "When I was 8, I would pick up scraps from electronics and try to rebuild or at least fix them," Kenneth said in one of his recent articles on Home repairs for top gadgets.