10 Best Usb Serial Cables of 2025

Tested and Reviewed: Top 10 Usb Serial Cables deals with expert ratings from 8.1 to a perfect 10

May 2026 Edition

Editor's Choice

9.7

EC Buying

EC Buying USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter

Editor's bottom line:

“This usb serial cables is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

USB to 9-pin serial cable Product features: easy installation, no external power supply, and physical drive required
Applicable scope: This product can easily realize the conversion between the USB interface of the computer and the universal serial port, providing a fast channel for the computer without a serial port, and using this product is equivalent to turning the traditional serial port device into a plug-and-play USB device.
Supports various models of MCU, MCU STC download, LED screen control card, MODEM, and ISDN terminal adapter communication is suitable for computers or notebooks with USB ports.
Application platform: Support USB1.0/1.1 specification, compatible with USB2.0 specification, support full-speed transfer mode 12MBPS, support Win98, 98SE, Me, 2000, XP, Mac OS8.6, vista, win7-32, 64-bit.
Installation Instructions: 1. Run the driver CH340.EXE file to install 2. Connect the USB serial cable to the USB interface of the computer, and automatically install the driver 3. After the installation is successful, the COM port appears in the device manager

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Picked by 397 people today

9.5

OIKWAN

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)…

Main Highlights

!!Please NOTE: this is MALE RS232 to DB9 SERIAL CABLE ,Not VGA!!!It is 9 pin, NOT 15 pin!! Look carefully of the Pin is match with your device. Before ordering , please confirm the interface gender is waht you need. After receiving ,please read user manual /instruction at first and download the Driver at first from FT232 Official website or Cisco website . Customer service always online.
Wide range of applications: USB to RS232 DB9 male serial adapter can work with your Windows (10 / 8.1 / 8 / 7 / Vista / XP), MAC or Linux system and other platforms. USB adapter is designed to connect to serial devices, such as serial modem with DB9, ISDN terminal adapter, digital camera, label writer, palm computer, barcode scanner, PDA, cash register, CNC, PLC controller, tax printer, POS, bar code scanner, label printer, etc
High quality: ftdi usb serial,the latest ftdi chip set ensures more reliable and faster operation. USB 2.0 to RS232 male DB9 console cable will support 1Mbps date transfer rate.
Most convenient: rs232 to usb simple installation, plug and play, COM port creation, baud rate can be changed to the required settings. USB power supply - no external power supply required.
Exquisite design: usb-to-serial,Gold Plated USB RS232 connector and PVC cable ensure high performance and extra durability. Powered by USB port, this USB to DB9 series RS232 adapter cable is designed to fit easily into your handbag.

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9.5

SABRENT

SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, HEXNUTS, [Windows 11/10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 2.5 Feet (CB-DB9P)

Main Highlights

Provides the connection between USB and the traditional RS-232 serial port.
Supported OS: Windows 2000/ME/98SE, Windows XP (32/64-bit), Windows Vista (32/64-bit), Windows 7 (32/64-bit), Windows 8/8.1 (32/64-bit), Windows 10 and higher (32/64-bit), Mac OS X 10.6 and Above, Linux 2.4 or above.
Easy to setup: Plug & Play - Simply plug your device into the adapter and the adapter into your PC or Mac.
COM ports and Baud rates can be modified to desired set up.
This product comes with LIFETIME manufacturer warranty.

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9.2

OIKWAN

OIKWAN USB Console Cable,USB to RJ45 Console Cable for Cisco Routers/AP Router/Switch Windows, Mac, Linux(1.8m,Blue)

Main Highlights

Console cable :6FT-USB-RS232-RJ45 console cable .It's used for debugging and configuring network equipment !!Please NOTE this is USB to RJ45 CONSOLE CABLE ,Not ETHERNET !!!It is 8p8c!! Look carefully of the Pin is match with your device. Before ordering , please confirm it is you need. After receiving ,please read user manual /instruction at first . Customer service always online.
Works for console portthis USB to rj45 console cable Replaces COM port RS232 (DB-25/DB-9) serial port perfectly, connects to any laptop/PC's USB port directly to a console port like a charm. No more RS232 Female and male adapters32 and 64 bit operating systems are both support.except Chrome OS
Essential tools for network engineersThe Cisoc Console Cable It's designed for that a PC or laptops USB port connect to the console port with their Cisco modem, router, firewall, switch or other Serial based Cisco device. Cisco,Juniper,NETGEAR,Ubiquity,LINKSYS,TP-Link ,huawei, H3C, HP, 3com compatibly.
The pinout namesCisco usb console cable USB2.0 (1.1 compatible); CONSOLE's DTE Pinouts: RTS(1), DTR(2), TXD (3), GND(4), GND(5), RXD (6), DSR(7), CTS(8); the RJ45 pinout names is 1-CTS, 2-DSR, 3-RXD, 4-GND, 5-GND, 6-TXD, 7-DTR, 8-RTS. Cable length 1.8m/6ft, Maximum RS232 speed 500kbaud
LIFETIME CUSTOMER SUPPORTbeside get 1pack *6ft cisco usb to console,you also back with 180-day no reason free return and refund and 24-hour online service.

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9.0

OIKWAN

OIKWAN USB to RS232 Serial Adapter with FTDI Chipset - USB 2.0 to Female DB9 Serial Cable for Windows and Mac (6ft)

Main Highlights

!!Please NOTE: this is FEMALE USB RS232 to DB9 SERIAL CABLE ,Not VGA!!!It is 9 pin, NOT 15 pin!! Look carefully of the Pin is match with your device. Before ordering , please confirm the interface gender is waht you need. After receiving ,please read user manual /instruction at first and download the Driver at first from FT232 Official website or Cisco website . Customer service always online.
Gold Plated USB 2.0 Male to RS232 Female DB9 Serial Cable connects a serial DB9 (9 PIN) device, such as a modem, to a USB port on your computer. USB port with 1Mbps data transfer rate. NOTE: It's USB to RS232 FEMALE adapter,(It's NOT 15 pin VGA Monitor Cable)
9 pin to usb adapter built with the Industry Leading FTDI Chip,supports Windows 10/8.1/8/7/Vista/XP//2000 /Linux 2.4 or above, Mac OS X 10.6 and above; Drivers can be downloaded at FTDI website.
USB to RS232 adapter works with modems, ISDN Terminal Adapters, digital cameras, label writers, palm PCs, PDAs,cashier register,CNC,PLC controller,tax printer,POS, bar code scanner, label printer,and devices with DB9 serial ports
Plug-and-play convenience:DB9 serial port is seen as a COM port by your computer, and is available for use by any program that accesses COM ports,No need for an external power adapter:draws power directly from your computer via the USB connection
supports two-year warranty and easy to reach customer services.drivers can be downloaded at FTDI website

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8.8

CableCreation

CableCreation USB to RS232 Adapter with PL2303 Chipset, 6.6ft USB 2.0 Male to RS232 Female DB9 Serial Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras, CNC,Black

Main Highlights

Gold Plated USB 2.0 Male to RS232 Female DB9 Serial Cable connects a serial DB9 (9 PIN) device, such as a modem, to a USB port on your computer. USB port with 1Mbps data transfer rate. NOTE: This USB to RS232 adapter features a female RS232 connector, NOT a male RS232 connector!!!
Latest Prolific PL2303 chipset. supports Windows 11/10/8.1/8/7/Linux /Mac OS; NOTE: Drivers can be downloaded at Cablecreation website
Easy Connectivity: USB to RS232 adapter works with models, ISDN terminal adapters, digital cameras, label writers, palm PCs (Windows 11, 10, Windows 8, windows 7--should auto detect and install the drivers), PDAs, cashier register, CNC, PLC controller, tax printer, POS, bar code scanner, label printer, and devices with DB9 serial ports Please note that its not compatible with Cutting plotter, SCM
Tinned Copper Conductor and triple shielding ensure the best data transfer rate. USB bus powered, no external power adapter required. NOTE: If not recognized, you may need to use this serial adapter with a null modem adapter
CableCreation offers 24 month product warranty and easy to reach lifetime customer services.This USB to RS232 Adapter is a USB 2.0 male to RS232 female DB9 serial converter cable, suitable for customers with RS232 female head requirements with the same pin definition.If you have any problem with this item please do not hesitate to contact with us

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8.6

Gearmo

Gearmo USB to Serial RS-232 Adapter with LED Indicators, FTDI Chipset, Supports Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above

Main Highlights

[ USB to RS-232 Serial Adapter ] : 5ft Cable Length - Easily connect legacy DB-9 serial devices to modern USB-equipped computers. Uses include industrial, lab, and point-of-sale applications.
[ Easy Testing ] : Built-in signal tester features full LED indicators with dual-color display for quick and easy testing of RS-232 host-to-device connections.
[ Wide Compatibility ] : Built with an FTDI Chipset. Works seamlessly with Windows 7, 8, 10, 11, Linux, and macOS 10.X, making it a highly versatile solution across platforms.
[ Why Gearmo? ] : Your trusted partner based in the USA, providing advanced engineering, highly reliable and superior built products to handle the most demanding industries for over 10 years.
[ Engineering Support ] : Need specs? Contact us for CAD files, mechanical drawings, or datasheets to support your integration or project needs.

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8.3

OIKWAN

OIKWAN USB Type C to RS232 DB9 Serial Port Adapter Cable, FTDI Chipset, Supports Windows 11, 10, 8, 7 and Mac Linux

Main Highlights

!!Please NOTE: this is MALE Type-C RS232 to DB9 SERIAL CABLE ,Not VGA!!!It is 9 pin, NOT 15 pin!! Look carefully of the Pin is match with your device. Before ordering , please confirm the interface gender is waht you need. After receiving ,please read user manual /instruction at first and download the Driver at first from FT232 Official website or Cisco website . Customer service always online.
How it works: Use USB-C transfer rate up to 1Mbps to RS-232 converter to realize data transfer between PC or laptop with USB Type C port and RS-232 device, allows your PC or laptop to connect RS-232 serial devices and programs that communicate through COM ports.
Connectors :USB Type C male, RS232 db9 male,USB Type C 2.0 male to USB DB9 male
Chipset & Supported OS: FTDI-FT232RL Chipset for widest possible stablity and compatibility with Windows (10/8.1/8/7XP), Mac, Linux, etc. Support almost all serial COM port
Plug and play: Powered by USB-C port, no external power adapter required. Simple installation, plug & play after one time driver installation.
What you get: USB type C to Serial (9-Pin) DB-9 RS-232 Converter Cable is backed with 24-months worry-free and customer service support.

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8.1

DTECH

DTECH Serial Cable to USB Adapter DB9 Male RS232 Port Supports Windows 11 10 8 7 Mac (6 Feet, PL2303)

Main Highlights

9 pin serial to USB cable male to male port allows PC to connect serial RS-232 devices and programs that communicate through COM port (NOT VGA-Monitor-Video-Cord )
RS232C DB9 to USB adapter with gold plated connector ensures reliable data communication compared to the nickel plated DB9 interface
RS232 to USB cord with prolific PL2303 chipset supports Windows 11 10 8.1 8 7, Mac OS8 or higher, Linux 2.4.0 and later
Serial to USB adapter is wired as a straight through cable to connect DB9 devices such as router, GPS, Programming machine, barcode scanner, label writer, modem, digital camera, card reader, palm PC and digital organizer, etc
6ft serial USB RS232 converter data cord is shielded to protect your data from EMI/RFI noise, and is long enough to be useful but not so long as get in the way

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8.1

SABRENT

SABRENT USB 2.0 to Serial (9-Pin) DB-9 RS-232 Adapter Cable 6ft Cable [FTDI Chipset] (CB-FTDI)

Main Highlights

Cable Length: 6 ft cable
Side Connectors: Male Thumbscrews
Supports remote wake-up and power management - No IRQs, no IRQ conflicts
Provides a 96 byte buffer for each upstream and downstream data transfer
Compatible with USB Specification v1.1(0) & USB CDC v1.1, USB 2.0

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Our Best Overall Choice

Best Choice

9.7

EC Buying

EC Buying USB 2.0 to Serial DB-9 RS232 Adapter, Windows 7/8/10/11/32/64/XP/RS232 to USB Converter

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

USB to 9-pin serial cable Product features: easy installation, no external power supply, and physical drive required
Applicable scope: This product can easily realize the conversion between the USB interface of the computer and the universal serial port, providing a fast channel for the computer without a serial port, and using this product is equivalent to turning the traditional serial port device into a plug-and-play USB device.
Supports various models of MCU, MCU STC download, LED screen control card, MODEM, and ISDN terminal adapter communication is suitable for computers or notebooks with USB ports.
Application platform: Support USB1.0/1.1 specification, compatible with USB2.0 specification, support full-speed transfer mode 12MBPS, support Win98, 98SE, Me, 2000, XP, Mac OS8.6, vista, win7-32, 64-bit.
Installation Instructions: 1. Run the driver CH340.EXE file to install 2. Connect the USB serial cable to the USB interface of the computer, and automatically install the driver 3. After the installation is successful, the COM port appears in the device manager

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