PCIe vs PCIe vs PCIe : What's the Difference?

Gen4 nvme on PCIe 3 slot - ROG Forum pcie 4 in pcie 3 slot ssd So this SSD is a Gen4 Pcie nvme and i'm currently using 2 Gen3's in both M2 slots the board provides without issues I'm aware that my board pcie2 slot PCIe buses can support 1x, 4x, 8x, and 16x lanes PCIe has an effective transfer speed of up to 985 MBs per lane which means there is a potential transfer

pcie x16 expansion slot 2 que se instalaban en PCI-Express buscaban sobrepasar los límites de la interfaz SATA y se conectaban a través de una tarjeta, ¡no había slot M