PCI Express

You'll need to disable Nvidia HD audio, and plug the from the AV40s to your sound card

List of Motherboards with 3 PCI-Express x16 Slots: GIGABYTE B650 Gaming X AX V2, MSI X670E Gaming Plus WiFi, ASUS ROG Strix Z790-E Gaming WiFi II,

pcie 20 x16 slot What is PCI express card? How many types of PCIe cards are there? What does PCIe x8, or PCIe x16 mean? Can I use a PCIe card in a slot

pciex4 slot If you are desperate to try