do all m.2 slots support nvme
Which PCIe Slot is best for your Graphics Card? - CGDirector
Storage connectivity includes ten SATA 6 Gb/s ports, one 32 Gb/s M.2 slot with NVMe boot support, and one SATA-Express 10 Gb/s port.
ASUS Z790 GAMING WIFI7 LGA 1700 ATX motherboard ...
Motherboards with multiple M.2 slots allow installation of several NVMe SSDs, significantly increasing data transfer speeds and storage capacity.
Amazon.com: Dual M.2 PCIe Adapter for SATA (B Key) and NVMe (M ...
However, two M.2 NVMe slots controlled that are directly connected to the CPU only support the M.2 NVMe drives.