Does it really matter if I use an NVME SSD GEN 3 or GEN 4?

can i use gen 4 ssd on gen 3 slot   Dan can i put a pcie 40 in a 30 slot

2_1 slot on my ASUS ROG Strix x570i mobo The only thing I can find in bios is set to _1 link = Gen 4 Yet the SSD is still running at Gen 3

On my Asus x570 C8H, I can set each PCIe slot, each slot and the south bridge link to either Gen 3 or Gen 4 independently I'm currently Most computers and storage drives still use the common SATA or PCIe interfaces to sling your bits of data around, but if you're lucky

great blue slot free play Correct, it only caps the maximum bandwidth of the SSD, assuming the drive is capable of exceeding PCIe x4 speeds in the first place It Two types of PCIe slot on an Asus H81M-K motherboard Various slots on a computer motherboard, from top to bottom: PCI Express x4; PCI Express x16; PCI Express