That board has a M.2 Key E slot.
https://www.asrock.com/mb/Intel/Z690 Pro RS/index.asp
1 M.2 Key-E for WiFi
https://www.amazon.com/Intel-Wi-Fi-Gig-Desktop-AX200-NGWG-NV/dp/B085M7VPDP/
Intel Wi-Fi 6 (Gig+) Desktop Kit, AX200, 2230, 2x2 AX+BT, vPro $20.99
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