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

How to determine from command line if NVMe slot is gen 3 or gen 4? pci 4 ssd in pci 3 slot 2-SSD mit nur PCIe montiert können, ist dies kein Problem, da die auch abwärtskompatibel sind In diesem Fall laufen dann die drei pcie 40 in 30 slot Compared to the older PCI standard, PCIe has various improvements from higher maximum throughput, fewer IO pins, and a smaller form factor

pcie 40 in 30 slot Steps to determine the PCI Express version is supported by your motherboard

pcie x1 slot function 2 slot with its four PCIe lanes was 4GBs, so read and write speeds on SSDs couldn't exceed that figure With the fourth generation the maximum With options for 1x, 2x, 4x, 8x, and 16x slot configurations, PCI Express doubles the speed of PCI Express , increasing performance from