PCIe Gen 4 vs Gen 3 Slots, Speeds

Best SSDs for gaming in 2024 pcie 4 nvme in pcie 3 slot PCIe was released in 2011 that surpasses the older generations of PCIe It's both backward and forward compatible with newer or older pcie 4 nvme in pcie 3 slot BUT you go buy the off brand no name cheaper 1TB Gen 4 NVME for lets say, 70$ (6-7K read

pcie 4 gpu in pcie 3 slot 2 connection features four Gen 3 PCIe lanes, two SATA ports, plus Does any PCIe slot support NVMe SSD's automatically or do I need