When did slots become commonplace? And NVME slots?

NVMe slot definitions Installing a riser cage in the primary, secondary, or tertiary PCIe connectors determines which PCIe form factor can be supported

By specification, all PCIe cards are backwards compatible with the lowest bandwidth x1 lane slots If the x1 slot is designed with an open end,

nvme m2 ssd slot There are two types of SSDs: SATA and NVMe SATA uses an older interface with one designed around hard drives while NVMe is designed for flash memory

nvme slot slot PCIe Gen4 x16 Speed 64 GBps NVMe slot PCIe Gen3 x4 8 GBps USB controller PCIe Gen2 x1 GBps A diagram showing the connections is shown in Figure