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Updated: 17 Apr 2026

10 Best Serial Cables Female-female

#1 Best Pick
uxcell 3.3 ft DB9 RS232 Serial Cable, Straight Through RS-232 Female to Female 9 Pin Extension Cable for Data Communication, Black

uxcell 3.3 ft DB9 RS232 Serial Cable, Straight Through RS-232 Female to Female 9 Pin Extension Cable for Data Communication, Black

Brand: uxcell
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  • DB9 cable is a standard interface cable commonly used for data communication. It provides a stable connection for transferring signals between compatible devices, making it an essential tool in industrial automation, communication systems, and other applications.
  • DB9 RS-232 Straight Through Serial Cable: Size: 1.0m / 3.3ft (Length); Plug Material: Metal Nickel Plated; Style: Female to Female; Core Material: 30 AWG Copper Core; Number of Pins: 9 Pin; Color: Black;
  • Stable Signal Transmission: The 9-core copper shielded wire effectively reduces electromagnetic interface, ensuring stable and clear data transmission; Durable Build: Nickel-plated connectors are corrosion-resistant, ensuring a long-lasting and stable connection and lifespan. Universal Compatibility: Suitable for various RS232 devices, such as CNC machine, modems, PCs, set-top box, scanners and industrial equipment.
  • 1. Identify the DB9 female ports on your devices. 2. Plug each end of the cable into the corresponding female port of the devices you want to connect. 3. Ensure the connectors are securely seated to establish a stable connection. 4. Use the connected devices according to their operating instruction.
  • Ensure the devices you are connecting support RS232 DB9 interfaces and are suitable for a female to female cable.
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#2 Best Value
DTECH Straight Through Serial Cable Female to Female 9 Pin DB9 Port (5ft)

DTECH Straight Through Serial Cable Female to Female 9 Pin DB9 Port (5ft)

Brand: DTECH
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  • DTECH COM port serial cable 5ft connects your computer to device with RS-232 compatible interface
  • DB9 rs232 cable female to female connector on each end equipped with screws to ensure an easy and solid connection for stable 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
  • It is pin-to-pin wired as a DE9 9 pin serial cable Straight Through (pinout :1-1, 2-2, 3-3, 4-4,......, 8-8, 9-9, G-G); standard shielded with AL foil
  • 5 feet RS232 serial cord f-f adapter for some old RS232C equipment like scanner, Modem, printer, plotter, switches, camera, barcode / embroidery machine, touchscreen, microcontroller, test equipment
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#3 Budget Pick
DTECH 10 ft DB9 Serial Cable Female to Female 9 Pin Straight Through (Black 3 meters)

DTECH 10 ft DB9 Serial Cable Female to Female 9 Pin Straight Through (Black 3 meters)

Brand: DTECH
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  • DTECH DB9 serial cable female to female connects your computer to device with RS-232 compatible (COM port) interface
  • RS232c cable 9 pin connector on each end equipped with screws to ensure an easy and solid connection for stable data communication
  • 10 feet DB9 extension cord is long enough for unites side by side; the wires inside the cable are of 30AWG gauge and easy to solder to
  • It is pin-to-pin wired as a DB-9 serial adapter Straight Through (pinout :1-1, 2-2, 3-3, 4-4,......, 8-8, 9-9, G-G); standard shielded with AL foil
  • 10ft DE9 RS232 serial adapter cord for some old RS232C equipment like scanner, Modem, printer, plotter, switches, camera, barcode / embroidery machine, touchscreen, microcontroller, test equipment
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#4 Top Choice
DTECH 6 ft RS232 Serial Cable Female to Female 9 Pin Straight Through (Black 2 Meters)

DTECH 6 ft RS232 Serial Cable Female to Female 9 Pin Straight Through (Black 2 Meters)

Brand: DTECH
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  • 9 pin serial cable 6ft connects your computer to device with RS-232 compatible (COM port) interface
  • DB9 RS232 cable female to female connector on each end equipped with screws to ensure an easy and solid connection for stable 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
  • It is pin-to-pin wired as a DE9 9 pin serial cable Straight Through (pinout :1-1, 2-2, 3-3, 4-4,......, 8-8, 9-9, G-G); standard shielded rs232 cord with AL foil
  • 6 feet RS232 serial cable f-f adapter for some old RS232C equipment like scanner, Modem, printer, plotter, switches, camera, barcode / embroidery machine, touchscreen, microcontroller, test equipment
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#5 Popular Choice
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 Full Handshaking 7 Wire Crossover for Data Communication (1.5 Feet, Black)

Brand: DTECH
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  • 1.5ft female to female null modem serial 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 with AL foil
  • DB9 female to female connector on each end equipped with screws to ensure an easy and solid connection for stable 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
  • 1.5 feet short serial adapter for hooking up PC laptop to some old RS232C equipment like scanner, Modem, printer, plotter, camera, barcode / embroidery machine, touchscreen, microcontroller, factory test equipment
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#6 Top Pick
Astrotek Serial RS232 Null Modem Cable DB9 Female to Female 7C 30AWG-Cu Molded Type, 3 Meter

Astrotek Serial RS232 Null Modem Cable DB9 Female to Female 7C 30AWG-Cu Molded Type, 3 Meter

Brand: Astrotek
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  • Fully molded connector and strain relief
  • Ideal for talking between two computer devices
  • Great for laptop usage for data transfer programs
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#7 Top Pick
StarTech.com DB9 RS232 Serial Null Modem Cable F/F - DB9 Female to Female - 9-Pin RS232 Null Modem Cable, 1-Meter, Black (SCNM9FF1MBK)

StarTech.com DB9 RS232 Serial Null Modem Cable F/F - DB9 Female to Female - 9-Pin RS232 Null Modem Cable, 1-Meter, Black (SCNM9FF1MBK)

Brand: StarTech
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  • Maintain reliable serial connections, free of EMI interference
  • Guaranteed dependability
  • High-quality shielding prevents EMI interference
  • Molded connectors with strain relief
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#8 Top Pick
Tunghey DB9 Female Serial Cable, 1M (Female), 9 Pin, RS232/RS485/RS422, Black PVC, Indoor, Industrial & Scientific, Compatible with PLC, POS, Modem, PC, PDA, Cash Register, Tax Machine

Tunghey DB9 Female Serial Cable, 1M (Female), 9 Pin, RS232/RS485/RS422, Black PVC, Indoor, Industrial & Scientific, Compatible with PLC, POS, Modem, PC, PDA, Cash Register, Tax Machine

Brand: tunghey
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  • 💗【DB9 to bare wire end female cable】: Extend RS232/RS485 Serial Cable with adopts 26awg tinned copper core, aluminum foil shield and metal braided screen to effectively prevent external signal interference.
  • 💗【Multiple communication protocols】: The Single DB9 Male Cable, 9 pin core wire is all connected, supports RS232/RS485/RS422 and other communication protocols. Usually: (RS232 connected to 235pin) (RS485 connected to 38 or 12 pin)
  • 💗【9 Wires Core color】: 1-black, 2-brown, 3-red, 4-orange, 5-yellow, 6-green, 7-blue, 8-gray, 9-white Durable: db9 bare wire adopts black PVC molded and injection molded shell, which eliminates heavy load strain and makes it strong and reliable.
  • 💗【Widely Applications】: The RS232/RS485 DB9 Serial bare wire can be used for automatic control equipment, PDA, Modem, PLC, POS, industrial control equipment, cash register, tax control machine, computer, etc
  • 💗【What you get】: We provide this DB9 Extension Cable with an 18-Month worry-free period and 24/7 friendly client consultation, if you have any questions, we will resolve your issue within 24 hours
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#9 Top Pick
StarTech.com DB9 RS232 Serial Null Modem Cable F/F - DB9 Female to Female - 9-Pin RS232 Null Modem Cable, 2-Meter, Black (SCNM9FF2MBK)

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

Brand: StarTech
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  • Maintain reliable serial connections, free of EMI interference
  • Guaranteed dependability
  • High-quality shielding prevents EMI interference
  • Molded connectors with strain relief
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#10 Top Pick
tunghey RS232 DB9 Female to Right Angle USB 2.0 A Female Serial Cable Adapter Converter 25cm

tunghey RS232 DB9 Female to Right Angle USB 2.0 A Female Serial Cable Adapter Converter 25cm

Brand: tunghey
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  • 💗 Allows you to connects a PC without serial port to a serial device as it adds a DB9 port to a laptop or desktop via USB port
  • 💗 Built with FTDI Chipset. Supports Windows 10, 8, 7, Mac OS8 or higher, Linux 2.4.0 and later,It is designed with a high performance quality processor chip (FTDI Chipset)
  • 💗 Portable USB-Powered design requires no bulky power adapter with Superior performance,offering an easy connectivity for serial plug devices
  • 💗 It is designed with a high performance quality processor chip (FTDI Chipset),which makes this USB to RS232 converter one of the most reliable adapters on the market
  • 💗【What you get】: We provide this RS232 DB9 Female to Right Angle USB 2.0 A Female Serial Cable with an 18-Month worry-free period and 24/7 friendly client consultation, if you have any questions, we will resolve your issue within 24 hours
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