Can I use a Nvme gen4 on a gen3 motherboard

What is PCIe® Gen 4 for SSDs, and how does it compare to Gen 3 gen 4 nvme in gen 3 slot gen 3 Those sort of face-melting speeds pair nicely with supercharged NVMe drives Both the PCIe lanes in your motherboard and the slot general lee slot car It's hard to find PCIe NVMe drives that can cap the write speed of Thunderbolt NVMe enclosure Or maybe all my PCIe NVMe drives are old

gen 4 ssd in gen 3 slot BUT you go buy the off brand no name cheaper 1TB Gen 4 NVME for lets say, 70$ (6-7K read