Does any PCIe slot support NVMe SSD's automatically or do I need

Transcend 1TB NVMe PCIe Gen3 x4 220s SSD w DRAM Cache m 2 ssd slot nvme pcie gen3 Testing and installing a Gen4 NVME SSD on a Gen3 Motherboard This includes m2 slot mainboard On 12th gen motherboard, what happens if you plug a Gen 3 SSD into a Gen 4 Slot and

m24 slot 2 NVMe options for configuration for a Precision 5510: NVMe (M 2 M-key SSDs using the PCIe bus are faster than B-key SSDs using the