No USB PnP Sound Device in Device Manager

‘USB PnP Sound Device’ does not appear under ‘Sound, video and game controllers’ in ‘Device Manager’.
Installed on both Win10 & 11 with same result; Win11 error message ‘Sound card not found or disabled’.

The possibilities are:

  1. general USB issue such as bad cable or USB hub failure. The sound card will not be detected by the computer, but neither will be the COM port.

  2. sound card failure. The sound care will not be detected, but COM port will show up as CP210x UART bridge under COM and LPT ports.

Please check the device manager to see which one of the scenarios we are dealing with.
Also, I don’t think I ever observed the error message you quoted. Please post the screenshot if you catch it again.

“The latest USB device you connected to this computer malfunctioned, or Windows does not recognize it.”

That’s with two different USB type C cables on two computers; Windows 10 & Windows 11, with all updates.
Device Manager on both computers with both cables shows:
Silicon Labs CP210x USB to UART bridge (Com3) appears under “Ports”.

Under “Sound, Video, and Game Controllers”, Intel Display Audio and Realtek Audio appear.

Under "Universal Serial Bus Controllers’, a “Unknown USB Device (Device Descriptor Request Failed)” appears.

Screenshot of error message and Device Manager attached.

(Attachment dev_mgr digirig.doc is missing)

Attached is the error message and Device Manager screenshots in .PDF format.

dev_mgr digirig.pdf (296 KB)

This looks like scenario #2.
I’m sending you a replacement unit and a pre-paid return shipping label for the original one.

Thanks; I’ll keep an eye out for it.