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USB to Serial RS232 DB9 Adapter FTDI Chipset, Windows 11 Support

Part # USBG-232
Product Rating:
(34 reviews)

Status: Available

RS-232 | 128 Bytes Receive | 256 Bytes Transmit | FTDI

  • Expand Your Serial Capabilities: Connect your legacy 9-pin serial device through a USB-A port to add legacy functionality to newer technologies with no serial port connections.
  • Safe Connections: Designed with a unique system load reduction feature, the Mini USB to Serial Adapter also offers 15kV surge protection for connected devices.
  • Plug-&-Play: The adapter’s power is drawn from a USB connection for ease of access and is compatible with Windows (up to Win 11), Mac OS, and Linux.
  • COM Retention: COM Ports are fully configurable, and after reboots, port assignments are preserved.
  • Upstream: 1 USB port, Type A Male Connector
  • Downstream: 1 Male DB9, w/ nuts
  • LEDs: Power, TX / RX


Product Documentation & Drivers

USB to Serial RS232 DB9 Adapter FTDI Chipset, Windows 11 Support

Part # USBG-232
Product Rating:
4.7 out of 5 stars
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Our USB to Serial Adapter fully supports Windows 11, Windows 10, Windows 8, Windows 7. Utilizing the Newest FTDI Chip Technology allowing to be upwards compatible with Newer Operating Systems. Replacing your old USB to Serial Adapter with our new USB to serial adapter should be completely seamless. You can plug our adapter in and click update drivers from Windows and it will automatically download the drivers directly from Microsoft. The Drivers are fully certified.

Looking for a USB to Serial adapter? This is a great price and amazing support. This adapter has been fully tested with Windows 11 and works flawlessly. Do not hesitate to purchase it and use it in your new setup. We back this support claim up with a 30 day guarantee!


  • 12 inch USB Cable length
  • Adds one RS-232 serial port by connecting to a USB port
  • Compact size cable type converter with cable length of 25 cm
  • Installed as standard Windows COM port
  • Full RS-232 modem control signals and hardware/software flow control
  • RS-232 data signals: TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND
  • High speed serial port with the baud rate up to 921.6K bps
  • Transmit Buffer: 512 bytes
  • Receive Buffer: 512 bytes
  • Non-standard baudrates supported
  • LED status indicators for TxD and RxD for easy port monitoring and diagnostic
  • Serial port protected with surge protection of 10KV
  • Powered by USB port, no external power adapter required
  • Easy plug and play installation and RS-232 device connection
  • COM port number assigned can be changed to any COM port number required
  • Works with USB 1.1 & 2.0 host port

OS Support:

  • Windows 7, Windows 8, Windows 10, Windows 11
  • Linux and Mac OS 10.X
  • Tested on Oct 2nd, 2014 this serial adapter supports Windows 11
  • Note: As of June 2018 Windows XP is no longer supported. Please contact us if you require Windows XP support.

Package Contents:

  • USB to RS-232 adapter
  • Driver Disc *not pictured

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Manufacturer: USBGearWarranty: 1 YearAvailability: Available
Barcode: 729440691004Ship Weight: 0.25Condition: New
Part Number: USBG-232Color: BlueLength/Size: 12 in
Port Count: 1Port Type: Male DB9 /W NutsInput Voltage: Unspecified or N/A
Temperature(Op): 0C ~ 55CESD Protection: 15kvSerial Modes: RS232
LEDs: TX/RXIsolation: --Chip: FTDI FT231XQ


Manufacturer: USBGear
Barcode: 729440691004
Part Number: USBG-232
Warranty: 1 Year
Ship Weight: 0.25
Color: Blue
Availability: Available
Condition: New
Port Count: 1
Port Type: Male DB9 /W Nuts
Input Voltage: Unspecified or N/A
Temperature(Op): 0C ~ 55C
ESD Protection: 15kv
Isolation: --
Serial Modes: RS232
Chip: FTDI FT231XQ

User Reviews

Product Rating:
(34 reviews)
4.7 out of 5 stars


Product Rating:
4.3 out of 5 stars
Happy customer

By: VTWIN on 05/11/2022

Product works as advertised, great delivery time.
Product Rating:
5 out of 5 stars
Works with Windows 11

By: MonteCrisco on 03/05/2022

Works with Windows 11 - No extra drivers needed.
Product Rating:
4 out of 5 stars
If you need to add RS-232

By: Pizzaman7 on 02/20/2021

I have two of these. I plug them in and they just work. I have a computer hooked up to my firewall's console port just in case I need to communicate with it in that manner. The other one I keep in my tool bag in case there is other network equipment I need to hook up to. Preliminary build of some networking equipment this would be invaluable for. There are still times you need a COM port. It's nice to be able to simply add it to a more modern computer. it has onboard lights so you can see activity. Really a nice device and never had problems with it.
Product Rating:
3 out of 5 stars
The mini CD was a problem

By: Phil-thom on 02/15/2021

I needed the USB to serial for both a Windows and MAC, fortunately it worked on both systems without a problem, however, if I had needed to install any software on my Macbook I would have had a problem. The mini CD with the software cannot be loaded in via a Slot CD reader.Consider sending a full size CD in future that will work with all readers.

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