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Plugable
kb.plugable.com › serial-adapter › how-to-change-the-com-port-for-a-usb-serial-adapter-on-windows-7,-8,-81,-and-10
How Do I Change the COM Port for a USB Serial Adapter on Windows? - Plugable Knowledge Base
Right-click on your USB Serial adapter device and click on Properties · Select the Port Settings tab and click on the Advanced button · Click on the COM Port Number drop-down menu to change the port to the required port number, ideally between 1 and 4 (some legacy applications expect a COM port in this range)
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Eclipsecat
eclipsecat.com › USB-to-Serial-Adapter
USB-A Serial Adapter - Single Port with COM Retention | Advantage Software
This compact adapter features COM retention, allowing the same COM port value to automatically be re-assigned to the port if the cable is disconnected and re-connected to the host computer, or if the system is rebooted. This means that you no longer have to make certain to connect your adapter to the SAME USB port every single time as this device will automatically ensure that as long as you are using the same computer, it takes the same COM Port Number in Windows, regardless as to where you connect it.
Discussions

How to change a usb to com port
Hi, I have an Rs232 usb to db25 adapter, when I plug it in to windows 10, it comes up in usb control in device manager. I need it in the com & LPT so I can change the bit rate. Can I change it from a usb control to a com port so I can change the port… More on learn.microsoft.com
🌐 learn.microsoft.com
4
1
July 17, 2024
Quick and easy way to find out what COM port your USB serial adapter is using in Windows??
You could add a PowerShell alias to this: Get-WmiObject Win32_SerialPort | Select-Object Name,Description More on reddit.com
🌐 r/networking
61
28
July 2, 2021
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
Don’t leave usb devices plugged into ports
I had that issue with my AAwireless Android Auto dongle. It didn't happen in my Sonata, but the IONIQ would constantly wake up, which I would see because my phone would connect to my car randomly throughout the day. Thankfully, the developers added an Auto Standby option that allows me to keep it plugged in and it won't wake the car constantly. More on reddit.com
🌐 r/Ioniq5
32
36
April 25, 2026
People also ask

What types of devices can I connect with a USB to COM port adapter?
A USB to COM port adapter allows you to connect devices that use RS-232 serial communication, such as industrial equipment, scientific instruments, point-of-sale systems, networking hardware, and vintage electronics like ham radios or MIDI controllers, to computers with USB ports.
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dell.com
dell.com › home › usb to com port adapters
USB To COM Port Adapters | Dell
How Do I Change the COM Port for a USB Serial Adapter on Windows?
Originally authored by: Bernie Thompson, July 4, 2011To change the COM port for a USB Serial adapter on Windows, you must adjust the advanced port settings within the Device Manager. This is often necessary because Windows may automatically assign a high COM port number, while many legacy applications expect a port between COM1 and COM4.How to Change the COM Port Open the Device Manager and expand the Ports (COM & LPT) Right-click on your USB Serial adapter device and click on Properties Select the Port Settings tab and click on the Advanced button Click on the COM Port Number drop-down
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kb.plugable.com
kb.plugable.com › serial-adapter › how-to-change-the-com-port-for-a-usb-serial-adapter-on-windows-7,-8,-81,-and-10
How Do I Change the COM Port for a USB Serial Adapter on Windows?
Do I need to install drivers for a USB to COM port adapter to work on my computer?
Most USB to COM port adapters require drivers to function correctly. Many modern operating systems will automatically recognize and install the necessary drivers, but for some adapters or older systems, you may need to download drivers from the manufacturer’s website.
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dell.com
dell.com › home › usb to com port adapters
USB To COM Port Adapters | Dell
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Dell
dell.com › home › usb to com port adapters
USB To COM Port Adapters | Dell
USB to COM port adapters offer a convenient solution for connecting modern devices with USB ports to legacy equipment that relies on serial communication. Perfect for both professionals and tech enthusiasts, these adapters help bridge the gap ...
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Amazon
amazon.com › Serial-Usb-Adapter › s
Amazon.com: Serial To Usb Adapter
Find quality serial to USB adapters with FTDI and Prolific chipsets. Compatible with Windows, Mac, and Linux.
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Microsoft Learn
learn.microsoft.com › en-us › answers › questions › 3996598 › how-to-change-a-usb-to-com-port
How to change a usb to com port - Microsoft Q&A
July 17, 2024 - The adapter is shown as a USB device because you didn't install the correct driver. You need to go to your adapter manufacturer's website, download and install the correct driver. Once you install the correct driver, the COM port will be shown under "Ports (COM & LPT)" and you will be able to change the bitrate.
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USBGear
usbgear.com › home › aliases
USB-COM-CBL - 1-Port RS-232 USB-to-Serial Adapter
Features 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 ...
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Uservoice
tnp.uservoice.com › knowledgebase › articles › 172101-determining-the-com-port-of-a-usb-to-serial-adapte
Determining the COM Port of a USB to Serial Adapter – TNP Service & Support
While, the 'plug' on the back of the computer remains USB, Terrain Navigator connects to it as a traditional serial COM Port. It is the number of this Virtual COM Port that is needed for Terrain Navigator Pro to connect to the GPS device attached in this fashion. Your adapter includes a CD that contains drivers for your device.
Find elsewhere
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Reddit
reddit.com › r/networking › quick and easy way to find out what com port your usb serial adapter is using in windows??
r/networking on Reddit: Quick and easy way to find out what COM port your USB serial adapter is using in Windows??
July 2, 2021 -

This seems like like a silly question but I have a few USB serial adapters and one of most annoying things I have to check every time I plug it in I have to open up Device Manager to see what number the COM port is?

I know the easiest thing to do would be using the same COM port every time and making sure I use the same USB port but a I have a few adapters which I use depending on the situation I'm in and I'm looking for a quick to quickly find the number so I don't have to worry about it.

How do you all deal with this situation? Would love to hear your tips for such a silly problem! Haha.

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Wikipedia
en.wikipedia.org › wiki › USB-to-serial_adapter
USB-to-serial adapter - Wikipedia
April 4, 2026 - A USB-to-serial adapter is a type of protocol converter that is used for converting USB data signals to and from serial communications standards (serial ports). Most commonly the USB data signals are converted to either RS-232, RS-485, RS-422, ...
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Amazon
amazon.com › usb-com-port-adapter › s
Amazon.com: Usb To Com Port Adapter
SABRENT USB 2.0 to Serial (DB9 RS232) Adapter Cable, Prolific Chipset, Driver Support Required for Some Systems, Windows 11/10/8/7, macOS, Linux (CB-DB9P) · StarTech.com 1 ft. USB to RS232 Serial DB9 Adapter Cable with COM Port Retention - Up to 920 kpbs USB A to DB9 Serial Adapter , TAA ...
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US Converters
usconverters.com › usb-serial-rs232-adapters
USB to Serial Adapter | USB Serial RS232 Cable from U. S. Converters
A USB to serial adapter, also referred to as a USB serial converter or RS232 adapter is a small electronic device which can convert a USB signal to serial RS232 data signals. RS232 is the type of signal which is in many older PCs and is referred to as a serial COM port.
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Eaton
tripplite.eaton.com › products › usb-adapters-serial~352-1297
Serial USB Adapters - Tripp Lite - Eaton
Tripp Lite has Serial USB Adapters to help you connect legacy serial devices, such as lab equipment and digital cameras, to your computer or laptop's USB-C port with full modem control.
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US Converters
usconverters.com › what-is-a-usb-to-serial-adapter
Understanding the Serial Cable to USB: What is it? : U.S. Converters LLC, Serial Data Communication
RS232 is the type of signal which is in many older PCs and is referred to as a serial COM port. A USB to serial adapter typically converts between USB and either RS232, RS485, RS422, or TCP signals, functioning similarly to a serial cable.
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Saelig
saelig.com › product › M00074004.htm
USB-2COM-U USB to RS-232 Dual Port Adapter ($15.00) : Saelig Online Store
Saelig Company - Unique Electronics: oscilloscopes, spectrum analyzers, test and measurement, control products, dataloggers and USB serial converters
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Coolgear
coolgear.com › home › industrial usb to serial adapters | rs232 rs422 rs485 | com port retention › usb to serial
USB to Serial - Coolgear
A USB to serial adapter, otherwise referred to as a USB serial converter, or an RS232 adapter, is a small electronic device which converts a USB signal to serial RS232 data signals.
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Gearmo
gearmo.com › home › shop › usb to serial adapters › usb to serial adapters
USB to Serial Adapters - Gearmo
USB to Serial adapters and cables for device and terminal use. USB to terminal wire connectors with mountable serial RS-232, RS-422, & RS-485 converters.
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The Home Depot
homedepot.com › p › Lukyamzn-Compatible-USB-to-Serial-Port-RS232-Adapter-Blue-with-FTDI-Chipset-and-LED-PH00327B028 › 332847882
Lukyamzn Compatible USB to Serial Port RS232 Adapter Blue with FTDI Chipset and LED PH00327B028 - The Home Depot
Lukyamzn Compatible USB to Serial Port RS232 Adapter Blue with FTDI Chipset and LED PH00327B028
This USB to Serial RS-232 Adapter with FTDI Chipset and LED indicators provides a seamless solution for connecting legacy DB-9 serial devices to modern USB-equipped computers. It supports multiple operating systems including Windows, Mac, and Linux, making it versatile for various applications like PDAs, GPS units, and barcode scanners. The built-in LED indicators allow for easy monitoring of data transmission, ensuring a reliable connection every time.
Price   $71.49