Best Male-Male Serial Adapters of 2025

Mike Davis Avatar
Mike Davis
Last Updated: Jan 4, 2025

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Male-male serial adapters are small devices that enable communication between two devices with male serial connectors. These adapters are commonly used in industrial and networking settings where older equipment with serial ports needs to be connected to newer computers or devices. They are also useful for connecting two devices with the same gender serial port, such as two modems or two printers. Male-male serial adapters are available in a variety of connector types and sizes, making them compatible with most devices. They are an affordable and convenient solution for bridging the gap between legacy and modern technology.

At a Glance: Our Top Picks

BENFEI USB to RS232 Male Serial Adapter Cover #TOP 1
BENFEI USB to RS232 Male Serial Adapter
ftb score rating icon 9.9
DB9 Null Modem Adapter Male to Male 2 Pack Cover #TOP 2
DB9 Null Modem Adapter Male to Male 2 Pack
ftb score rating icon 9.8
DB9 Null Modem Male to Female Slimline Adapter 2 Pack Cover #TOP 3
DB9 Null Modem Male to Female Slimline Adapter 2 Pack
ftb score rating icon 9.6

Top 10 Male-Male Serial Adapters

BENFEI USB to RS232 Male Serial Adapter

000151
Black
5 feet
BENFEI USB to RS232 Male Serial Adapter Cover
BENFEI USB to Serial Adapter, USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above, 1.8M(Not VGA)

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.

What We Like
Compatible with a wide range of platforms
No external power adapter required
Triple shielding and tinned copper conductor for best data transfer rate
#TOP 2

DB9 Null Modem Adapter Male to Male 2 Pack

8541690738
2 Pack
2 Pack
DB9 Null Modem Adapter Male to Male 2 Pack Cover
Arnorin DB9 Null Modem Adapter Male to Male Slimline Data Transfer Serial Port Adapter 2 Pack

The DB9 Null Modem Adapter Male to Male 2 Pack converts standard, straight wired cables to null modem wiring. The gold contact plating provides reliable connections, while the slimline design reduces leverage strain on computer ports. The UL grade 94V-0 connector insulator satisfies flammability requirements and the screws are both removable and reversible.

What We Like
Gold contact plating provides reliable connections
Slimline design reduces leverage strain on computer ports
UL grade 94V-0 connector insulator satisfies flammability requirements

DB9 Null Modem Male to Female Slimline Adapter 2 Pack

KAD9D90001-S-2
2 Pack
2 Pack
DB9 Null Modem Male to Female Slimline Adapter 2 Pack Cover
DB9 null modem male to female slimline data transfer serial port adapter 2 Pack

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.

What We Like
Converts standard cables to null modem wiring
Slimline design reduces strain on computer ports
UL grade 94V-0 connector insulator meets flammability requirements
#TOP 4

Warmstor 6-Pack DB9 Male to Male Mini Gender Changer Adapter Coupler

DB9-AD
Male to Male,6-PACK
Warmstor 6-Pack DB9 Male to Male Mini Gender Changer Adapter Coupler Cover
Warmstor 6-Pack 9Pin RS232 Serial Cable DB9 Male to Male Mini Gender Changer Adapter Coupler Connector

Introducing the Warmstor DB9 Male-Male Changer, a cost-effective solution for easily interconnecting 9 pin serial cables or devices that have female plugs. With precision-made connectors and nickel plating, this changer offers increased corrosion protection and lossless signal transmission for a long-lasting performance. The plug and play design makes it super user-friendly, requiring no driver installation or soldering. Compatible with various devices such as PC, modem, printer, scanner, cashier, and POS machine, this mini gender changer is a versatile accessory for your connectivity needs. With the Warmstor DB9 Male-Male Changer, you can effortlessly connect your devices and enjoy seamless communication.

What We Like
Cost-effective
Precision-made connectors
Plug and play

OIKWAN USB to RS232 Adapter

AQ-17
OIKWAN USB to RS232 Adapter Cover
OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows 11,10, 8, 7, Vista, XP, 2000, Linux and Mac OS(6ft)…

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.

What We Like
Reliable and fast operation with the latest FTDI chipset
Convenient plug-and-play installation with no external power required
Supports a wide range of devices and operating systems
#TOP 6

BeElion DB9 Male to Male Adapter

BE369007ELECTRONICS
BeElion DB9 Male to Male Adapter Cover
BeElion 2PCS Serial RS232 DB9 Pin Gender Male to Male Adapter,Null Modem Gender Connectors

The BeElion DB9 Adapter is a reliable solution for connecting two devices with a null modem connection. Its sturdy ABS and metal construction ensure durability while the slim profile minimizes bending, offering a secure connection. You can easily transfer files between two computers or devices without the worry of data conflicts, thanks to its straight-through connectors. With a compact size and lightweight design, this adapter is perfect for high-speed data transfers, making your setup efficient and hassle-free.

What We Like
Durable ABS and metal construction
Secure, slim profile design
Facilitates file transfers
No data conflict
Compact and lightweight

MEIRIYFA DB9 Gender Changer Converter for Serial Applications

MEIRIYFA
db 9
silver
MEIRIYFA DB9 Gender Changer Converter for Serial Applications Cover
MEIRIYFA DB9 Gender Changer D-SUB 9 Pin RS-232 Connector Serial Port Cable Coupler Adapter for Serial Applications-4Pcs (Male to Male)

The MEIRIYFA DB9 Gender Changer Converter is a quick and economical solution for changing the gender of a "D" port. It is compatible with a variety of serial devices, such as PCs, modems, printers, scanners, and cash registers. The converter is plug and play, and does not require a power supply. Its compact and molded design makes it portable and easy to store. The connectors are precision-crafted for enhanced corrosion protection and lossless signal. The shielded design prevents unwanted interference from office equipment.

What We Like
Compatible with a variety of serial devices
Quick and economical way to change the gender of a "D" port
Plug and play, no power supply required
Compact and molded design makes it portable and easy to store
Precision-crafted connectors for enhanced corrosion protection and lossless signal
#TOP 8

CableCreation USB to RS232 Male Adapter

CD0493
PL2303 Chip
CableCreation USB to RS232 Male Adapter Cover
CableCreation USB to RS232 Male Adapter with PL2303 Chipset, USB to DB9 Serial Converter for Windows 11, 10, 8.1, 8, 7, Linux and Mac OS,Black

The CableCreation USB to RS232 Male Adapter with PL2303 Chipset allows you to connect a serial DB9 device to a USB port on your computer. It uses the latest Prolific PL2303 chipset and has a 1Mbps data transfer rate. The gold plated connectors ensure high performance and extra durability. This adapter is compatible with Windows 10/8.1/8/7/Vista/XP/2000/Linux 2.4 or above/Mac OS X 10.6 and above. It works with a variety of devices including modems, digital cameras, label writers, and more. No external power adapter is required as it is powered by the USB port.

What We Like
Easy connectivity with a variety of devices
Gold plated connectors for high performance and durability
No external power adapter required
#TOP 9

ANMBEST DB9 to RJ45 Adapter

Black
DB9 Male
ANMBEST DB9 to RJ45 Adapter Cover
ANMBEST 10PCS DB9 Male Ethernet Adapter, 9 Pin Serial Port Male to RJ45 Ethernet LAN Extend Modular Converter, M/F

The ANMBEST DB9 Ethernet Adapter allows you to easily transmit signals between RS232 ports using standard CAT5, CAT5E, or CAT6 network cables, with a range of up to 100 feet. This flexibility means you can connect devices that use different interfaces without hassle. The adapter features a well-defined pin configuration that ensures compatibility, making setup straightforward. Additionally, its high-quality alloy construction minimizes interference, while the durable ABS material enhances wear-resistance, ensuring a long-lasting connection. This product is ideal for integrating legacy serial devices into modern Ethernet networks.

What We Like
Long transmission range
High-quality construction
Easy compatibility
Durable materials
#TOP 10

C2G DB9 Male to Female Null Modem Adapter

C2G
8075
Beige
1.5 Inch
C2G DB9 Male to Female Null Modem Adapter Cover
C2G 08075 DB9 Male to DB9 Female Serial RS232 Null Modem Adapter, Beige

The C2G Null Modem Adapter is a practical solution for converting a standard serial cable into a null modem cable. This makes it easy to resolve compatibility issues between your data terminal equipment (DTE) and data communication equipment (DCE). Built for durability, it connects two RS-232 serial ports, ensuring reliable data transmission. The adapter features a molded design that offers a secure connection while protecting against electromagnetic and radio frequency interference. With C2G's reputation for quality, this adapter provides an efficient and economical way to link your laptop's serial ports.

What We Like
Easy compatibility resolution
Durable design
Reliable data transmission
Shielded against interference
Buying Guide Image
Editor's Notes

During our male-male serial adapter research, we found 24 male-male serial adapter products and shortlisted 10 quality products. We collected and analyzed 48,765 customer reviews through our big data system to write the male-male serial adapters list. We found that most customers choose male-male serial adapters with an average price of $7.49.

The male-male serial adapters are available for purchase. We have researched hundreds of brands and picked the top brands of male-male serial adapters, including BENFEI, Arnorin, Warmstor, OIKWAN, BeElion. The seller of top 1 product has received honest feedback from 5,299 consumers with an average rating of 4.8.

Written by
Mike Davis Avatar

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.