Hauppauge WinTV-HVR-950Q and MacOS: a rocky relationship?

I've been using a Hauppauge WinTV-HVR-950Q on my Mac mini (2011) for years. It worked flawlessly -- just plug and play. Well, a few days ago the Mac mini went kaput, and I had to switch to another, newer, Mac mini while the Mac mini (2011) was in the shop (thankfully, they were able to resuscitate it by replacing the fan, which had failed, causing the Mac to overheat). This other Mac mini (Macmini7,1) runs Monterey, and although System Information lists it correctly as a USB device:

WinTV HVR-950:

Product ID: 0x7200

Vendor ID: 0x2040 (Hauppauge Computer Works, Inc.)

Version: 0.05

Serial Number: 4035027056

Speed: Up to 480 Mb/s

Manufacturer: Hauppauge

Location ID: 0x14700000 / 13

Current Available (mA): 500

Current Required (mA): 500

Extra Operating Current (mA): 0

The device isn't getting any power to it, and EyeTV 4 doesn't see it.

So, I attached it to an even older Mac mini (Macmini2,1), and, again, it works flawlessly (albeit a bit slow).

I tried the Hauppauge WinTV-HVR-950Q on two other Mac minis that run Catalina, and they share the same issue as the Mac mini running Monterey. Geniatech says that they have not removed support for any devices from EyeTV, and I take them at their word since there seems to be an issue getting power to the devices from the USB ports, whether EyeTV is running or not, and the devices still work flawlessly with older Macs running older versions of MacOS.

Does anyone have a clue about what may be going on here? I've got three of these Hauppauge devices that are all in perfect shape, and are in use on three older Macs (well, temporarily two older Macs). The failure of the Mac mini (2011) made me realize that my older Macs may not be viable forever, and I need to find a PVR solution based on newer Mac (or Windows or Linux) technology. This predicament is a bit heartbreaking, because it used to be just plug and play, and now it isn't.

Any suggestions would be helpful and much appreciated.

Macs I've tried:

Mac mini (Macmini2,1) running Mac OS X Leopard (10.5.8) and EyeTV 3: works flawlessly -- plug and play

Mac mini (Macmini5,3) running macOS Sierra (10.12.6) and EyeTV 3: works flawlessly -- plug and play

Mac mini (Macmini6,2) running macOS Catalina (10.15.7) and EyeTV 4: recognized by system -- no power

Mac mini (Macmini7,1) running macOS Monterey (12.7) and EyeTV 4: recognized by system -- no power

Mac mini (Macmini8,1) running macOS Catalina (10.15.7) and EyeTV 4: recognized by system -- no power

Thanks,

Reagan Cardwell