AM4 board supporting older PCI interfaces
AM4 board supporting older PCI interfaces
I located AM4 motherboards from Asus PRO featuring legacy PCI slots to keep your older sound cards functional. Just ensure you have the correct drivers for newer systems. https://www.asus.com/Motherboards/Pro-A520M-C-CSM/
Seems intended for professional applications. They also offer PCIe sound cards. My main worry is the absence of Windows 10 drivers for an older sound card.
It might not be available on Amazon. I can locate it at the store for around €70, tax included.