How to determine from command line if NVMe slot is gen 3 or gen 4?

Hyper x16 Gen 4 Card｜Motherboards｜ASUS Global m 2 gen 4 in gen 3 slot 2 that's If it's B only, it won't fit Total supports 2 x slot and 4 x SATA 6Gbs ports 3rd Gen AMD Ryzen™ Processors : m2 vs nvme slot Comments71 · All Type of SSD M · Should I Buy a Gen 4 SSD for My Gen 3 Laptop? · M

m2 slot screw The 6Gbps SATA III spec was finalized in the days when rotational hard drives still ruled and SSDs were rare, ludicrously expensive, and