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Reddit
reddit.com › r/networking › usb-to-serial for console that works with windows 11?
r/networking on Reddit: USB-to-Serial for console that works with Windows 11?
July 9, 2024 -

Need some recommendations from fellow Network Engineers who have already dealt with this. Our org recently updated to Windows 11 and it killed our ability to use our USB to Serial adapters because of Windows core isolation/memory integrity settings. Our domain admins have given up trying to disable memory integrity for us so now it's on me to figure out a viable alternative for our console connections, and I really don't feel like rolling the dice on random purchases.

Anyone have a recommendation for a USB-to-Serial adapter that will work when Windows 11 Core Isolation security settings are all turned on? It really needs to be a legit serial connection on the adapter too because most of our network infrastructure doesn't have native USB console ports and also we are doing Serial over Ethernet in a few places and those require native serial on both sides.

Thanks in advance :)

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Coolgear
coolgear.com › home › shop › usb to serial rs-232 db9 adapter ftdi chipset w/ 15kv esd protection, windows 11 support
USB to Serial RS-232 DB9 Adapter FTDI Chipset w/ 15kV ESD Protection, Windows 11 Support - Coolgear
USB to Serial RS-232 DB9 Adapter FTDI Chipset w/ 15kV ESD Protection, Windows 11 Support
RS-232 | 512 Bytes Receive | 512 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 ESD 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 configurab
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Price   $29.29
Discussions

USB to serial converter for Windows 11
EEVblog Captcha · We have seen a lot of robot like traffic coming from your IP range, please confirm you're not a robot · This security check has been powered by · CrowdSec More on eevblog.com
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May 25, 2025
Using cheap Prolific USB to Serial Adapters with Win 11 | PICAXE Forum
When I look at Device Manager on ... my Win 11 laptop, they show up under the “Other devices” heading. I also tried updating the driver for the USB to Serial adapter in Device manager by selecting “Browse my computer for drivers” and directing it to the CLx64 sub-folder (and leaving the “Include subfolders” box ticked) and pressing “Next” but it simply said “Windows was unable ... More on picaxeforum.co.uk
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September 24, 2025
USB to Serial connection
Does anyone know a fix for USB to serial? Windows 11 doesn't seem to support that, and I've tried downloading drivers from Prolific, but it says it's not Windows 11 compatible. There must be a fix somewhere. Need to connect a 9 pin, 9600 BAUD serial to… More on learn.microsoft.com
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November 22, 2024
USB to Serial Device - Windows 11 ARM | Parallels Forums
I am trying to connect a USB to Serial cable to my computer (M1 MacBook Pro) running the latest version of parallels. I can configure the cable in the... More on forum.parallels.com
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November 15, 2021
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Amazon
amazon.com › Tera-Grand-Premium-Serial-Adapter › dp › B0762BSKGC
Amazon.com: Tera Grand - Premium USB 2.0 to RS232 Serial DB9 Adapter Cable 3 Feet - Supports Windows 11, 10, 8, 7, Vista, XP, 2000, 98, Linux and Mac - Built with FTDI Chipset and Hex Jack Nuts : Electronics
Amazon.com: Tera Grand - Premium USB 2.0 to RS232 Serial DB9 Adapter Cable 3 Feet - Supports Windows 11, 10, 8, 7, Vista, XP, 2000, 98, Linux and Mac - Built with FTDI Chipset and Hex Jack Nuts : Electronics
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EEVblog
eevblog.com › forum › general-computing › usb-to-serial-converter-for-windows-11
USB to serial converter for Windows 11
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StarTech.com
startech.com › home › add-on cards & peripherals › serial cards & adapters › icusb2321x
1ft (30cm) 1-Port Professional USB to Serial Adapter Cable with COM Retention, USB to RS232 Adapter - TAA
1ft (30cm) 1-Port Professional USB to Serial Adapter Cable with COM Retention, USB to RS232 Adapter - TAA
Add one serial RS-232 port with com retention to any laptop or computer with a USB port
Price   $51.24
Find elsewhere
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USBGear
usbgear.com › home › usb to serial › 1x serial usb
USB to RS-232 Serial Adapter w/ LED Indicators Windows 11 Support
This USB serial adapter allows you to add a single serial port and monitor the status of your connections by using LED activity flashes. When connection activity is present, the LED’s will flash letting you know you have signal on the pins.
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US Converters
usconverters.com › usb-rs232-adapter-xs8801
USB RS232 Adapter – Windows USB to RS232 adapter
USB RS232 Adapter optimized for Windows. Use this adapter to communicate with any RS232 port via USB. Easy to setup and use.
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PICAXE Forum
picaxeforum.co.uk › home › forums › main picaxe forum › active picaxe forum
Using cheap Prolific USB to Serial Adapters with Win 11 | PICAXE Forum
September 24, 2025 - For serial download ( programming) , the serial line needs to idle low with data high. This is why you got the error message. All you probably... ... FTDI USB adapters work perfectly well too. They generally cost more than the other two, but you can tweak their firmware to invert the signals so you don't need to add an external hardware inverter. BTW the Windows 10 drivers for the CP210x and CH340 work fine on WIndows 11, even if they are not digitally signed.
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Titan
titan.tw › home › usb to serial drivers 2.12.36.4 for windows
USB to Serial Drivers 2.12.36.4 for Windows | TITAN Electronics Inc.
July 31, 2025 - Specializes in USB, Serial & CAN Connectivity · 0 item(s) - $0.00 · Recently added item(s) [featured_image] Download · Version · Download 161054 · File Size 2.11 MB · File Count 1 · Create Date 02/26/2020 · Last Updated 07/31/2025 · Includes the following version of the Windows operating system: Windows 11, 10, 8.1, 8, 7, XP, Windows Server 2025, 2022, 2019, 2016, 2012 R2, 2012 and 2008 R2 ·
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Dell
dell.com › home › support home › product support › driver details
Prolific USB to Serial Controller Driver | Driver Details | Dell Cape Verde
Prolific USB to Serial Controller driver is the software that helps your operating system to communicate with USB Serial Port devices. ... File Format: Dell Update Packages in native Microsoft Windows 64-bit format do not require that Microsoft WOW64 be installed on the Microsoft Windows Server.
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Parallels
forum.parallels.com › threads › usb-to-serial-device-windows-11-arm.355591
USB to Serial Device - Windows 11 ARM | Parallels Forums
November 15, 2021 - I am trying to connect a USB to Serial cable to my computer (M1 MacBook Pro) running the latest version of parallels. I can configure the cable in the...
Top answer
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Hi Gordon,

Thank you for sharing your question. I get why it's important to get that USB serial converter up and running, and I'm here to help you out. Based on my knowledge this problem usually happens because Windows either doesn't install the right driver on its own, or the device actually needs a driver from the maker.

So, to fix it, plug the USB serial converter into your computer. If Windows doesn't install the driver automatically, open Device Manager by pressing the Windows key + X, then pick Device Manager. Check under Ports (COM & LPT) or Other Devices to find your converter. Right-click on the device and click Update Driver. Then, pick Search automatically for drivers. If Windows can't find one, get the correct driver from the maker's website FTDI and Prolific are common chipsets. After you download it, pick Browse my computer for drivers and show it the folder where you saved the driver files. After it's installed, restart your PC and make sure the device shows up under Ports (COM & LPT) with a COM port number.

May I also ask have you already looked to see if the device shows up in Device Manager? Also, do you know what kind of chipset it uses (FTDI, Prolific, or CH340)? Knowing this will help us make sure we get the right driver.

 

I hope this answer is helpful, if you have any questions, feel free to reply.

 

Best Regards,

Noel

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To install a USB serial converter driver, you typically need to ensure that the appropriate driver is loaded for your device. Here are the steps you can follow:

  1. Automatic Installation: If your USB serial converter is a standard device class that is included in Windows, the driver (Usbser.sys) should install automatically when you connect the device. Windows uses the compatible ID to load the driver from the system.
  2. Check Device Manager: If the driver does not install automatically:
    • Open Device Manager on your computer.
    • Look for your USB serial converter under Ports (COM & LPT) or Other Devices.
    • Right-click on the device and select Update Driver Software.
  3. Manual Installation: If Windows cannot find the driver:
    • You may need to download the driver from the manufacturer’s website or use a custom INF file if your device requires a specific driver.
    • If your device specifies class code 02 and subclass code 02, it should load Usbser.sys automatically. If it has a different subclass code, you might need to provide a custom INF file to specify the driver.
  4. Using INF Files: If you have a custom driver:
    • Create an INF file that references the driver and includes the hardware ID of your device.
    • Use the Add New Hardware Wizard to install the driver manually by pointing it to the location of your INF file.
  5. Restart Your Computer: After installation, you may need to restart your computer to complete the installation process.

If you encounter issues, ensure that you have the latest updates installed on your machine by visiting Windows Update regularly.

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Titan
titan.tw › home › support › usb to serial drivers download
USB to Serial Drivers Download | TITAN Electronics Inc.
July 31, 2025 - You need to install driver first, prior to hardware installation. Do not connect the USB-to-Serial Adapter to the USB port of your computer, before you finish driver installation.
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Stenoworks
stenoworks.com › home › i/o gear usb to serial adapter new windows 11
I/O Gear USB to Serial Adapter New Windows 11 - StenoWorks The Court Reporting Store
I/O Gear USB to Serial Adapter New Windows 11
This is a new I/O Gear USB to Serial adapter.  Sells new for $29.95.  Use it to connect your steno machine through it's serial cable to your USB port on your computer.  Recommended for Stenovation's DigitalCAT. The USB to Serial RS-232 Adapter provides one RS-232 Serial (DB-9 male) connector via one standard USB port at a data transfer rate of up to 230Kbps. You can instantly enjoy connectivity with modem, PDA, POS, or other serial devices on your PC or Mac without the hassle of opening your computer case. It provides a quick, simple, and cost-effective solution and is ideal for various commun
Price   $29.95
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Silicon Labs
silabs.com › software-and-tools › usb-to-uart-bridge-vcp-drivers
CP210x USB to UART Bridge VCP Drivers - Silicon Labs
These drivers are static examples detailed in Application Note 197: The Serial Communications Guide for the CP210x. The CP210x Manufacturing DLL and Runtime DLL have been updated and must be used with v 6.0 and later of the CP210x Windows VCP Driver. Application Note Software downloads affected are AN144SW.zip, AN205SW.zip and AN223SW.zip.