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Amazon
amazon.com › Cable-Matters-Serial-Adapter-USB-C › dp › B075GV6VL1
Amazon.com: Cable Matters USB C to Serial Adapter Cable - 3ft, USBC to DB9, USB C to RS232 Cable, Compatible with Thunderbolt 5/4, Supports Windows 11/10/8/7/Vista/XP, macOS 11.0 or Later : Electronics
Direct USB C to RS232 Connection: This USB C to serial adapter cable connects a USB-C port on your computer to devices with a female DB9 port for easy configuration or programming, serving as a vital link for various equipment.
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Amazon
amazon.com › OIKWAN-Adapter-Compatible-Windows-Android › dp › B0CL4T6NN9
Amazon.com: OIKWAN USB-C to Serial Adapter, 6FT RS232 DB9 Female Converter Cable, FTDI Chip, Compatible with Windows, Mac, Linux, Type C Device, Industrial Applications, Data Communication : Electronics
Connectors :USB Type C male, RS232 db9 Female,USB Type C 2.0 male to USB DB9 Female · Chipset & Supported OS: FTDI-FT232RL Chipset for widest possible stablity and compatibility with Windows (10/8.1/8/7XP), Mac, Linux, etc.
Discussions

I'm looking for a good USB (C) to RS232 adapter
Digitus R232 adapters are pretty reliable. I see them a lot. More on reddit.com
🌐 r/de_EDV
25
0
June 7, 2025
What USB-RS232 adaptors do y’all use and would it make any difference?
This is the "famous" Keyspan: https://www.amazon.com/Tripp-Lite-Keyspan-High-Speed-USA-19HS/dp/B0000VYJRY/ It uses a Texas Instruments chipset and is very stable, and works like a champ. This is the less famous IOGear GUC232A: https://www.amazon.com/IOGEAR-Serial-RS-232-Adapter-GUC232A/dp/B000067VB7/ It uses a Prolific PL-2303HXC chipset, and is roughly half the cost of the Keyspan. The Prolific chipset devices tend to change COM ports when they feel like it and have a somewhat negative reputation largely caused by low-quality counterfit devices. I've been using one of these IOGear units for years. Someday when it dies, or if I need to move to USB-C, I'll probably upgrade to the Keyspan (which is available in a USB-C version). It doesn't really matter, so long as you buy an authentic product that is well manufactured. More on reddit.com
🌐 r/Cisco
28
12
September 19, 2023
Which USB-RS232 adapter to get?
I’ve used various cables with FTDI chips pretty successfully. My last one was a cheap AliExpress/eBay cable, but I can’t find it anymore so can’t point you in the right direction. 🤷‍♂️ More on reddit.com
🌐 r/networking
28
7
November 4, 2025
I'm looking for USB to serial adapter
I have been using this one for a while. It is an FTDI chip and the Mac OS doesn't require drivers. https://www.amazon.com/dp/B09WJQ94ZY?psc=1&ref=ppx_yo2ov_dt_b_product_details More on reddit.com
🌐 r/networking
33
23
August 14, 2024
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UNITEK
unitek-products.com › home › usb-c to serial rs232 cable
USB-C to Serial RS232 Cable | UNITEK
USB-C to Serial RS232 Cable
Model Number: Y-1105K Product Overview: USB-C upstream connector Compatible with label writer, ISDN terminal adapter, printer UNITEK offers you the industry-use serial adapter with different connectors including this USB-C equipped adapter as well as USB-A equipped, and also RS232 and DB25M serial connector, to meet your needs. Certifications Product Features: Support the conversion of USB-C to RS232. Link PC to Serial devices such as printer, label writer, ISDN terminal adapter. With USB specification v1.1. Flexible baud rate support up to 1.2Mbps. Bus powered, no external power supply n
Price   $16.99
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Amazon
amazon.com › female-serial-usb-adapter › s
Amazon.com: Female Serial To Usb Adapter
USB to RS232 Serial Adapter with FTDI Chipset - USB 2.0 to Female DB9 Serial Cable for Windows and Mac (6ft) · DTECH 3 Feet USB to Serial Female Adapter Cable DB9 RS232 to USB 2.0 Cord with Prolific PL2303 Chip Windows 11 10 8 7 Mac Linux (9 Pin 2 Row Connector RS232C Protocol) · SABRENT ...
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US Converters
usconverters.com › usb-c-serial-rs232-adapter
USB-C to Serial Adapter, RS232
USB-C to Serial RS232 Adapter for converting any serial RS232 signal to USB or opposite. Many new computers now has the new USB Type-C connector. Easy to install and use. Drivers for Windows, Mac and Linux.
Find elsewhere
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Amazon
amazon.com › Female-Serial-Adapter-Supports-Windows › dp › B017CZ3FZ2
Amazon.com: DTECH 6 Feet USB to RS232 DB9 Female Serial Adapter Cable Windows 11 10 8 7 Mac Linux Serial to USB 2.0 with Prolific PL2303 Chip : Electronics
Prolific USB to RS232 adapter is with PL-2303 Chipset supports Windows 11, 10, 8, 7, XP, Vista, 2000, 98, MacOS8, Linux 2.4.0(if can’t use it pls contact us for installation driver or download online) The interface is 2 row 9 pin RS232 Female ...
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Gearmo
gearmo.com › home › shop › usb-c 2.0 to serial rs-232 adapter w/ led indicators
USB-C 2.0 to Serial RS-232 Adapter w/ LED Indicators
USB-C 2.0 to Serial RS-232 Adapter w/ LED Indicators
This NEW USB C to Serial RS232 adapter uses the new type-C USB connector technology for easy, reversible connections. The same great tool of choice when supporting serial peripherals in newer computers without serial support with a C port host. Supported by Windows 11, this is an ideal solution for serial device support.   Ferrite ring for noise reduction USB Type-C reversible connector Full compliance with USB 2.0/1.1 Supports Windows 7, 8, 10, and 11, Linux, OSX
Price   $40.29
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USBGear
usbgear.com › usb-c-serial-adapter.html
USB C Serial Adapter - USB Type-C
Have you noticed your new laptop only has USB Type-C ports and no RS232 serial port? The USB C serial adapters are ideal for adding RS232 serial COM ports to your Type-C ready laptop or notebook. Our USB C serial adapter has the great performance as a typical USB-A port but the USB C version does not require a connection orientation.
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The Pi Hut
thepihut.com › home › industrial usb to rs232 female serial adapter cable
Industrial USB to RS232 Female Serial Adapter Cable - The Pi Hut
This USB to RS232 female cable has an FT232RL chip for easy communication and comes with a USB Type-A connector and a DB9 female port, which is made to meet the demands of industrial control equipment and projects requiring reliable communication. It has strong anti-interference properties and stable performance, making it an ideal choice for environments where communication integrity is critical.
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Eclipsecat
eclipsecat.com › USB-C-to-Serial-Adapter
USB-C to Serial Adapter | 3ft | Advantage Software
USB C to RS232 adapter cable connects from the USB-C port of a computer to a device with a female DB9 port; USB bus-powered cable connects to devices for configuration or programming
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Amazon
amazon.com › Female-Adapter-Chipset-Supports-Windows › dp › B01GA0IZBO
Amazon.com: DTECH USB to Serial Adapter 10 ft USB to RS232 DB9 Female Cable COM Port with FTDI Chipset Supports Windows 11 10 8 7 Mac Linux : Electronics
10 Feet Portable USB to serial female adapter cable for More Placement Choices RS232C USB to serial cable adapter is USB-powered so you don’t need to carry all those bulky power adapters around here and there.
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Amazon
amazon.com › rs232-usb-female › s
Amazon.com: Rs232 To Usb Female
USB to RS232 Serial Adapter with FTDI Chipset - USB 2.0 to Female DB9 Serial Cable for Windows and Mac (6ft) · DTECH 3 Feet USB to Serial Female Adapter Cable DB9 RS232 to USB 2.0 Cord with Prolific PL2303 Chip Windows 11 10 8 7 Mac Linux (9 Pin 2 Row Connector RS232C Protocol) · USB to RS232 ...
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Romtronic
romtronic.com › home › usb-c to rs-232 (db9) adapter cable: pinout, wiring, and grounding guide
USB-C to RS-232 (DB9) Adapter Cable: Pinout, Wiring, and Grounding Guide | Romtronic
August 29, 2025 - (Some routers/Cisco consoles use a female DB9, some use RJ45 rolled cables.) Baud rate mismatches: Verify that both devices use the same baud, parity, and flow control. Many adapters auto-negotiate or include LEDs, allowing you to see TX/RX pulses. Ground loops or noise: If data is garbled, try grounding the cable shield as described above. In extreme cases, use an isolated USB‑serial adapter or RS-422 converter.
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Metabee
metabee.com › home › cable assemblies › usb
USB Type C to RS-232 Serial DB09 Female Adapter Cable 100cm Round Black Cable - Renhotec
USB Type C to RS-232 Serial DB09 Female Adapter Cable With 100cm Round Black Cable
Convert USB Type-C to RS-232 DB09 female serial port with this 100cm round black adapter cable from Renhotec. Perfect for industrial, commercial or personal use.
Price   $19.00
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Eaton
tripplite.eaton.com › products catalog › usb adapters › usa19hsc
USB-C to Serial Adapter Cable DB9 RS232 - 3-ft Keyspan | Eaton
DB9 adapter connects your legacy serial device to the USB-C port on your tablet, PC, laptop, Chromebook or MacBook. Works with Windows and Mac.