This is a summary of new compatible motherboards.
The article will be updated with new references, as well as our "compatible list".
Z490 serial:
ASRock Z490M-ITX/ac
MSI MEG Z490I UNIFY
B550 serial:
ASRock B550 Phantom Gaming-ITX/ax
MSI MPG B550I Gaming Edge Wifi
Not compatible:
ASRock Z490 Phantom Gaming-ITX/TB3
ASUS ROG Strix B550-I Gaming
ASUS ROG Strix Z490-I Gaming
Giagbyte Z490I AORUS ULTRA
Gigabyte B550I AORUS PRO AX