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Updated: 07 Apr 2026

10 Best Serial Adapters Db9-female

#1 Best Pick
JMT 1.5m USB-C to RS232 DB9 Male Serial Adapter PL-2302 Chipset w/Female to Female Connector Converter Supports Windows XP/Vista/7/8.1/10,Mac OS (DB9Pin F to F Converter)

JMT 1.5m USB-C to RS232 DB9 Male Serial Adapter PL-2302 Chipset w/Female to Female Connector Converter Supports Windows XP/Vista/7/8.1/10,Mac OS (DB9Pin F to F Converter)

Brand: JMT
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  • Added a DB9PIN female-to-female adapter version, you can switch out of DB9pin male connector, and you can switch out of DB9pin female connector, allowing you to use one wire for two purposes.
  • Built in Prolific PL-2303 Chipset,high data transmission speed and durable,widely compatibility with Windows XP/Vista/7 /8.1/10, Mac OS.
  • Powered by Type- C Port, No External Power Adapter Required. Simple Installation, Plug & Play after One Time Driver Installation.
  • Designed for connecting serial devices, such as DB9 equipped PCs, routers, GPS, Programming machine, barcode scanners, label writers, serial modems, digital cameras, card readers, palm PCs and digital organizers, etc
  • Note:The interface is 9-pin RS232 Male, please make sure that your serial device with a 9-pin Female Port.If yours is 9-pin Male Port,pls choose the version with Female to Female converter.
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#2 Best Value
ECSiNG 2pcs 9 Pin DB9 RS232 Female Connector Metal Housing Adapter with Hollow Gold-Plated Pins

ECSiNG 2pcs 9 Pin DB9 RS232 Female Connector Metal Housing Adapter with Hollow Gold-Plated Pins

Brand: ECSiNG
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  • Wide Compatibility: Suitable for touchscreens, communication converters, programmers, LED controllers, and other RS232 devices.
  • Durable Metal Housing: Sturdy construction protects pins and ensures reliable connector longevity.
  • Gold-Plated Pins: Hollow copper pins with gold plating provide excellent conductivity and corrosion resistance.
  • Precise 9-Pin Design: Female DB9 configuration ensures accurate fit with standard RS232 connectors.
  • Easy Installation: Direct-fit adapter allows simple mounting, soldering and basic tools are needed.
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#3 Budget Pick
ECSiNG 2Pcs DB9 Female 9-Pin to DB25 Male 25-Pin Serial Adapter for Computers Digital Cameras Barcode Printers

ECSiNG 2Pcs DB9 Female 9-Pin to DB25 Male 25-Pin Serial Adapter for Computers Digital Cameras Barcode Printers

Brand: ECSiNG
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  • Applicability: This DB9 female 9-pin to DB25 male 25-pin serial adapter is suitable for connecting computers, digital cameras, PLCs, PDAs, modems, barcode machines, industrial instruments and other communication equipment.
  • The barrier-free design provides a secure connection, and each adapter is fully shielded from external EMI/RFI interference.
  • Product Material: This product is specially designed with metal and plastic materials, which has a high service life and is not easy to damage.
  • Easy to install: Direct replacement without adjustment, perfect compatibility and high reliability.
  • Product List: Product include a total of 2pcs Serial Adapter, which can completely meet your daily use needs and replacement.
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#4 Top Choice
PNGKNYOCN 30cm DB9 Y Splitter Cable DB9 9 Pin 1 Male to 2 Female Rs232 Serial Splitter Adapter Straight-Through Cable YOUCHENG for Connect Various Serial Interface Devices

PNGKNYOCN 30cm DB9 Y Splitter Cable DB9 9 Pin 1 Male to 2 Female Rs232 Serial Splitter Adapter Straight-Through Cable YOUCHENG for Connect Various Serial Interface Devices

Brand: PNGKNYOCN
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  • Split a DB9 9-pin male connector into two DB9 9-pin female connectors. This is an ideal and cost-effective way to connect two DB9 RS-232 serial peripherals to a PC source.
  • The DB9 serial splitter cable allows you to flexibly expand computer peripherals where you need it. Each cable is completely shielded, and the connector thumbscrew can provide quick-change connections.
  • Uses high-quality nickel-plated connectors and plugs and a high-quality PVC injection housing,With wear-resistant, durable, smooth transmission and other functions
  • The cable length is 30cm, the compact and simple design is easy to carry and place, easy to use, plug and play, no driver installation
  • With high compatibility, it can meet the needs of notebooks and desktops to connect to serial computers, digital machine tools, set-top boxes, industrial instruments, etc.
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#5 Popular Choice
BENFEI USB to Serial Adapter, 1.8M USB to RS-232 Female (9 Pin) DB9 Serial Cable Prolific Chipset Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above

BENFEI USB to Serial Adapter, 1.8M USB to RS-232 Female (9 Pin) DB9 Serial Cable Prolific Chipset Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above

Brand: BENFEI
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  • HOW IT WORKS: BENFEI USB to RS232 DB9 serial connector is designed for connecting to serial devices such as DB9 equipped serial modems, ISDN terminal adapters, digital cameras, label pens, palm PCs, barcode scanners, PDAs etc via a USB port with 1Mbit/s data transfer rate;
  • CONNECTORS: With standard USB Type A male to standard 9-pin DB9-RS-232 serial connectors; Note that this is not the USB to VGA(DB15) solution that cannot mirror video/audio to an external monitor. It is the USB to DB9 solution;
  • Conductor & Shielding: Tinned copper conductor (wire gauge #24#28) and triple shielding ensure the best data transfer rate. Powered by USB port, no external power supply required. Easy installation, plug & play after one-time driver installation;
  • Wide compatibility: the USB to RS232 adapter is equipped with the Prolific PL-2303 chipset for maximum compatibility with Windows 11, 10, 8, 7, XP, Vista, 2000, 98, MacOS8 or higher, Linux 2.4.0 and higher and other platforms;
  • 18-month warranty: the exclusive 18-month unconditional Benfei guarantee ensures long-term satisfaction with your purchase; friendly and easily accessible customer service to solve your problems in time.
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#6 Top Pick
Warmstor 10-Pack 9Pin RS232 Serial Cable DB9 Male to Male/Female to Female Mini Gender Changer Adapter Coupler Connector

Warmstor 10-Pack 9Pin RS232 Serial Cable DB9 Male to Male/Female to Female Mini Gender Changer Adapter Coupler Connector

Brand: Warmstor
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  • ❁PERFORMANCE: Allow you interconnect two 9 pin vga cables no matter your cables are male or female plugs. They can be used with PC, Modem,Printer,Scanner,Cashier,POS Machine and more.
  • ❁CONFIGURATION: These DB9 mini gender changers are constructed of nickel plated and have precision-made connectors for increasing corrosion protection,offering lossless signal and ensuring long using lifespan.
  • ❁EASY TO USE: Plug and play,no power needed.Serial ports soldering free.
  • ❁PACKAGE CONTENT: COST-EFFECTIVE 10PACK Serial RS232 DB9 Connector include 5 x Male-Male,5 x Female-Female Mini Gender Changer.
  • ❁WARM NOTE: These adapters only support connecting 9pin DB9 RS232 Cables,they DO NOT support 15pin HD15 or 25pin DB25 Cables!
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#7 Top Pick
DTECH DB9 Breakout Connector DB-9 Female RS232 Serial Adapter Solderless Module Board with Terminal Block, Case, Nuts and Tail Pipes (DB9 Female + Nuts)

DTECH DB9 Breakout Connector DB-9 Female RS232 Serial Adapter Solderless Module Board with Terminal Block, Case, Nuts and Tail Pipes (DB9 Female + Nuts)

Brand: DTech
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  • Soldering-free DB9 connector serial adapter is a great little affordable solution for custom-wired DB-9 RS232 connection (wire range : 12 AWG - 24 AWG)
  • DB9 female breakout connector’s signal pins are Clearly Labeled on Both Sides of PCB board for quick connection and easy troubleshooting
  • Simple D-sub 9 pin serial connector is well built with pure copper plated joints and gold plated contacts for reliable data communication
  • Case size : 50 x 34 x 20mm (L*W*H); cable hole dia.: 10mm/0.39''; 3pcs tail tubes (5mm/0.2'', 6mm/0.23'', 7mm/0.27'')
  • DB9 solderless connector terminal block with nuts is compatible with CNC Controller, motor, radio, digital security camera, laptop, set-top box, barcode machine, PLC, PDA, POS, Modem, tax control panel, network serial device, industrial instrument, etc
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#8 Top Pick
DTech 3-Pack Serial Adapter Female to Female DB9 Gender Changer Female to Male 9 Pin Connector Male to Male RS232 Coupler Mini Size for PC Computer Data Transfer

DTech 3-Pack Serial Adapter Female to Female DB9 Gender Changer Female to Male 9 Pin Connector Male to Male RS232 Coupler Mini Size for PC Computer Data Transfer

Brand: DTECH
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  • 3pcs mini DB9 connector set (DB9 female to female adapter, DB9 female to male adapter and DB9 male to male adapter) for serial data communication
  • RS232 gender changer is a simple little tool to change the gender on the serial cables, switch and splitter box, or to extend computer cables
  • Compact size serial port adapter bender with removable hex nut and mounting screw for an easy extension connection between two cords
  • low profile 9 pin adapter RS-232 is wired straight through pin to pin and its narrow slimline design reduces leverage strain on computer ports and save space
  • Standard 9 pin D-Sub connector converter for desktop computer COM port, PC laptop, PLC, GPS, POS, modem, router, serial monitor, LCD display, printer, scanner, cashier, Cisco switch, joystick and other legacy devices
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#9 Top Pick
Lonely Binary 12-Pack RS232 Cable Gender Changer Coupler Adapter - DB9 Male to Male, Female to Female, Female to Male Serial Adapters for Printer, Computer & Device

Lonely Binary 12-Pack RS232 Cable Gender Changer Coupler Adapter - DB9 Male to Male, Female to Female, Female to Male Serial Adapters for Printer, Computer & Device

Brand: LONELY BINARY
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  • ✅【12-Pack Complete Solution】– Includes 4× Male-to-Male, 4× Female-to-Female, and 4× Female-to-Male DB9 adapters for versatile RS232 connections.
  • ✅【Universal Device Compatibility】– Connect easily with computers, printers, modems, PDAs, industrial equipment, and legacy serial devices.
  • ✅【Instant Gender Conversion】– Quickly convert and extend DB9 cables without additional hardware or costly cable replacements.
  • ✅【Reliable & Shielded Construction】– Built to prevent interference, ensuring stable, high-quality serial communication in all environments.
  • ✅【Great Value Pack】– Perfect bulk solution for IT technicians, students, hobbyists, and professionals; always have the adapters you need.
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#10 Top Pick
DTECH 3m USB to RS232 DB9 Female Serial Port Adapter Cable with FTDI Chipset Supports Windows 10 8 7 Mac Linux (10 Feet, FT232 Chip)

DTECH 3m USB to RS232 DB9 Female Serial Port Adapter Cable with FTDI Chipset Supports Windows 10 8 7 Mac Linux (10 Feet, FT232 Chip)

Brand: DTECH
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  • USB to DB9 female serial port cable allows you to connects a PC without serial port to a serial device because it adds a 9 pin port to laptop or desktop via USB port
  • Portable USB-Powered design requires no bulky power adapter with superior performance, offering an easy connectivity for serial plug devices
  • Built as FTDI serial cable for Windows 10, 8, 7, Mac OS8 or higher, Linux 2.4.0 and later
  • USB male to serial female cable is designed with a high performance quality processor chip (FT232 Chipset) that makes this USB to RS232 converter one of the most reliable adapters on the market
  • 3 meter USB 2.0 to RS232 serial cable (male to female) is long enough for your devices to reach to a place needed (standard pinout: pin 2- RXD, Pin 3- TXD, Pin 5 - GND)
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