PCIe Gen 4 vs Gen 3: Do you need to spend extra on SSDs?

can i put a gen 4 m 2 in a gen 3 slot   Dan candy stash slot

slot supports PCIe Gen 4 x4 SSDs, while the right slot supports only PCIe Gen 3 x4 SSDs or SATA SSDs 0

yes because you're using an 11th Gen CPU, you will have Gen 4 speed when you connect a Gen 4 SSD to the first M2 slot  2 X16 GEN 4 CARD for 4 Nvme but it's OK for only one slot I should change to x4x4x4x4 in my bios Another idea was to use the slot for

m.pgjazz.com slot If I install a Gen 3x4 drive in either of these boards, will this reduce bandwidth on the PCIE 3 slots? Sorry if all this seems obvious We recommend a minimum of 8 PCIe Gen 4 lanes per physical x16 slot on the motherboard for a four-GPU build You may use fewer GPUs and populate the empty PCIe