When did slots become commonplace? And NVME slots?

MINISFORUM BD770iBD790i m 2 nvme slot on motherboard Turbo : Running at PCI-E Gen3 x4 maximizes performance for NVMe based SSDs DDR4 Boost: Advanced technology to deliver pure data signals for the best m24 slot If the NVMe slot is currently empty, the drive will work, but since the slot is PCIe Gen x 2, the Samsung drive will run at

m2 slot Here is my dilemma My ASUS Z790 Prime P Mobo has Three slots Here are the specs: Intel® 13th and 12th Gen processors: _1 slot (Key