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Updated: 19 Apr 2026

10 Best Serial Cables

#1 Best Pick
DTECH 1.8m DB9 to RJ45 Console Cable Cisco Device Management Serial Adapter (6 Feet, Blue)

DTECH 1.8m DB9 to RJ45 Console Cable Cisco Device Management Serial Adapter (6 Feet, Blue)

Brand: DTECH-AU
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  • DB9 to RJ45 console management cable connects your PC laptop to Cisco router, switch, firewall, wireless device and more
  • The cross reference is equivalent to Cisco Part Number 72-3383-01, CAB-CONSOLE-RJ45
  • 1.8 meter short rollover serial adapter allows you to place the device at a convenient distance
  • Ultra thin flat design makes it flexible, helps avoid tangled cords and saves space ; features RJ-45 male connector and 9-pin DB-9 D-sub port
  • Blue RJ45 to DB9 female converter cord is an ideal replacement data cable for reprogramming and updating compatible equipment and devices; can possibly be used to configure other networking devices as well
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#2 Best Value
USB to Serial Adapter, Benfei USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 10/8.1/8/7, Mac OS X 10.6 and Above, 1.8M

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

Brand: BENFEI
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  • HOW IT WORKS: BENFEI USB to RS232 DB9 Female Serial Adapter is designed for connecting to serial devices such as DB9 equipped serial modems, ISDN Terminal Adapters, digital cameras, label writers, palm PCs, barcode scanners, PDAs etc through USB port with 1Mbps data transfer rate.
  • CONNECTORS: With standard USB Type A Male to standard Female 9-pin DB9 RS-232 serial connector; It's not the USB to VGA cable or USB to DB9 cable. If you need USB-VGA, please refer to https://www.amazon.com/dp/B085KX97QG?ref=myi_title_dp.
  • CONDUCTOR & SHIELDING: Tinned Copper Conductor(Wire guage#24#28) and triple shielding ensure the best data transfer rate. Powered by USB port, no external power adapter required. Simple installation, plug & play after one time driver installation.
  • WIDE COMPATIBILITY: USB to RS232 adapter is with Prolific PL-2303 Chipset for widest possible compatibility with Windows 10, 8, 7, XP, Vista, 2000, 98, MacOS8 or higher, Linux 2.4.0 and later, and other platforms.
  • 18 MONTH WARRANTY: Exclusive BENFEI Unconditional 18-month Warranty ensures long-time satisfaction of your purchase; Friendly and easy-to-reach customer service to solve your problems timely.
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#3 Budget Pick
StarTech.com 2m Black Straight Through DB9 RS232 Serial Cable - DB9 RS232 Serial Extension Cable - Male to Female Cable

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

Brand: StarTech
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  • M/F
  • Serial extension cable
  • DB-9 (M) to DB-9 (F)
  • 6.6 ft
  • black
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#4 Top Choice
DB9 RS232 Serial Cable,DB9 Male to Female Adapters Cable for Data Communication Printers,Barcode Machines and Other Equipment use (1M)

DB9 RS232 Serial Cable,DB9 Male to Female Adapters Cable for Data Communication Printers,Barcode Machines and Other Equipment use (1M)

Brand: Danprzzz
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  • 【 DB9 Male to Female Serial Cable】Extends the connection of DB 9-pin RS232 serial peripherals on a PC to devices with RS-232-compatible (COM port) interfaces. Conveniently moves the serial device to the location you want.
  • 【Stable transmission】: Use 30AWG tinned copper corecable, multilayer shielding anti-interference to ensure smooth signal transmission, supports RS232 serial port protocol, Simple connection, no need to install drivers, Just plug it in and use it.
  • 【Wide Compatibility】: DB9 has high compatibility, supports notebook/desktop computers, connects industrial instruments, industrial control machines, printers, set-top boxes, barcode machines and other equipment use. 【High-Quality Materia
  • 【High-Quality Material】: It is made of environmentally friendly PVC material, one-piece injection molding, nickel-plated interface connector, anti-oxidation and anti-rust, prolongs the service life, stable signal transmission.
  • 【What you get】We provide DB9 Male to Female Serial Cable,If you have any questions about DB9 Male to Female Serial Cable, please feel free to contact us. We will provide the most professional and timely reply within 24 hours.
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#5 Popular Choice
tunghey DB9 Serial Extension Cable 9 pin Male Connector to Bare Wire, D-SUB 9-Pin RS232 485 Serial Cable with Bare Wire End 1M (Male)

tunghey DB9 Serial Extension Cable 9 pin Male Connector to Bare Wire, D-SUB 9-Pin RS232 485 Serial Cable with Bare Wire End 1M (Male)

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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#6 Top Pick
DTECH 1.8m USB to TTL Serial 3.3V Adapter Cable TX RX Signal 4 Pin 0.1 inch Pitch Female Socket PL2303 Prolific Chip Windows 10 8 7 XP Vista (6ft, Black)

DTECH 1.8m USB to TTL Serial 3.3V Adapter Cable TX RX Signal 4 Pin 0.1 inch Pitch Female Socket PL2303 Prolific Chip Windows 10 8 7 XP Vista (6ft, Black)

Brand: DTECH-AU
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  • 1.8m USB to TTL serial adapter (with 4 pin 0.1” pitch female header socket) connects devices with 3.3 V logic level UART signals interface to a laptop via USB port
  • A genuine PL2303TA chip module is housed in USB 2.0 type A male terminal for wider compatibility and supports reliable data transfer rates
  • 1.8 meter USB to serial cable (4 way output flying leads ) provides access to UART (transmit) Tx, (receive) Rx, VCC (5V) and GND
  • Prolific chipset on the PCB board has configurable internal EEPROM and UART signals can be individually inverted by configuring the EEPROM
  • Compatible with Windows 10, 8, 8.1, 7 (32, 64-bit), 2008/XP/Vista/CE; ideal USB 2.0 debug cord for Vendor ID re-write, router, GPS, set top box, transmitter, flash firmware on hard drive, etc.
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#7 Top Pick
DB9 9 Pin Serial Cable, DB9 9 Pin Serial Cable Male to Male RS232 Straight Through, Laptop for Scanner, Modem, Printer, Plotter, Camera and More (1M)

DB9 9 Pin Serial Cable, DB9 9 Pin Serial Cable Male to Male RS232 Straight Through, Laptop for Scanner, Modem, Printer, Plotter, Camera and More (1M)

Brand: Danprzzz
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  • 【 DB9 Male to Male Serial Cable】Extends the connection of DB 9-pin RS232 serial peripherals on a PC to devices with RS-232-compatible (COM port) interfaces. Conveniently moves the serial device to the location you want.
  • 【Good Connect】: 9 pin DB9 connector on each end equipped with screws to ensure an easy and solid connection for data communication
  • 【Easy to use】: Shielded RS-232 com port cord is with AL foil and all 9 pins are wired STAIGHT Through pin-to-pin (pinout: 1-1, 2-2, 3-3, 4-4,......, 8-8, 9-9, G-G)
  • 【Perfect Compatibility】: Extra long COM port cable male to male plug for hooking up PC laptop to some old RS-232 equipments like scanner, Modem, printer, plotter, camera, barcode / embroidery machine, microcontroller,test equipment
  • 【What you get】We provide DB9 Male to Male Serial Cable,If you have any questions about DB9 Male to Male Serial Cable, please feel free to contact us. We will provide the most professional and timely reply within 24 hours.
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#8 Top Pick
Compucableplususa.com Best Industrial Serial DB9 D-Sub 9 Pin Male RS232 Serial Cable with Bare Wire - 28 AWG with Black PVC Jacket (Male, 10 Feet)

Compucableplususa.com Best Industrial Serial DB9 D-Sub 9 Pin Male RS232 Serial Cable with Bare Wire - 28 AWG with Black PVC Jacket (Male, 10 Feet)

Brand: CompuCablePlusUSA
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  • DB9 Serial Male 9 Pin Data Transfer Cable with wire ends; Straight Connectors—Wire Leads Connection attached with cable.
  • Tin-coated Bare wires end labeled with color and pin numbers for convenience of assembly or soldering.
  • 10 feet industrial grade RS232 adapter cable with bare wire ends. Connect legacy DB9 serial communications devices to board.
  • RS-232 level UART data signals; Industry standard to ensure maximum compatibility and superior reliability for industrial application.
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#9 Top Pick
Cable Matters USB to Serial Adapter Cable - 0.9m, USB to RS232 / DB9 Cable with PL2303 chipset Supports Windows and macOS 11.0 or Later for Cisco Router and Switch, Black

Cable Matters USB to Serial Adapter Cable - 0.9m, USB to RS232 / DB9 Cable with PL2303 chipset Supports Windows and macOS 11.0 or Later for Cisco Router and Switch, Black

Brand: Cable Matters
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  • Effortless Connectivity: This USB to serial adapter cable provides a direct link from the USB-A port on your computer to a device with a female DB9 port. Ideal for configuring or programming devices, this bus-powered RS232 to USB cable is an essential tool for various equipment setups.
  • Versatile Serial Communication: Use this male to male serial to USB cable for seamless communication with equipment requiring a DB9 connector. For devices with incompatible ports, employ a DB9 mini gender changer (sold separately) to facilitate connection.
  • Easy Installation: Quickly set up this USB to RS232 adapter with downloadable drivers from Cable Matters. For direct computer-to-computer connections, add a null modem adapter (sold separately) to link two serial cables effectively.
  • Broad Compatibility: Compatible with Windows and Mac, this 9 pin to USB adapter supports systems from Windows XP to Windows 11 and macOS 11.0 or later. Note that connecting to certain equipment may require additional proprietary software.
  • Diverse Equipment Compatibility: The RS-232 compatible DB9 to USB adapter is crucial for connecting a wide array of devices, including CNC machines, GPS units, telescopes, set-top boxes, Cisco network switches, sewing machines, and more.
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#10 Top Pick
UGREEN USB to RS232 DB9 9 Pin Male Serial Adapter Cable with PL2303 Chipset Compatible with Windows 11 10 8.1 8 7 XP Vista, Mac OS, Linux for Cisco Router and Switch, Celestron Telescope (1m)

UGREEN USB to RS232 DB9 9 Pin Male Serial Adapter Cable with PL2303 Chipset Compatible with Windows 11 10 8.1 8 7 XP Vista, Mac OS, Linux for Cisco Router and Switch, Celestron Telescope (1m)

Brand: UGREEN
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  • How it works: This USB to rs232 adapter connects to serial devices via a USB port, such as serial digital cameras equipped with DB9, label writers, handheld computers, barcode scanners, PDAs, etc. This USB to serial adapter is widely used in shopping malls, offices, etc.
  • Multi-system compatibility: This usb to serial adapter is compatible with Win 7 8 10 Win XP Vista Mac OS Linux system.It automatically updates the driver for Win8 and above when connected to the Internet. For windows 7, Mac OS, please install the CD driver in the package. Note: Linux only supports the use of kernel version 2.6-5.2.
  • Multi-device compatibility: This USB to rs232 adapter is suitable for computers (computers or laptops) to connect various RS232 serial devices, such as cash registers, LED and LCD text displays, digital cameras, POS, Bar code scanners, door control system, printers, CNC controllers, scanners, etc.
  • Double shielding layer: This rs232 to usb has a thick tinned copper core, aluminum foil, metal braided mesh shielding layer, multi-layer shielding to isolate interference, which can make it smooth and not stuck when used. In addition, its baud rate supports 20bps to 256kbps, and serial communication data can be transmitted quickly.
  • Powerful chip: This rs232 to usb is equipped with PL2303 professional chip, which can transmit signals at a high speed and stably, protecting your data safely and without loss.
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