PCIe Gen 4

When I get to the point where my new PCIe Gen 4 NVMe is full, is it worth spending money again on another super fast NVMe for my second M2 slot,

The UD85 makes it easy to upgrade from PCIe Gen 3 to Gen 4 It's also 2 slots supporting PCIe interface and an OS with NVMe support Operating

genies touch slot Looking at Amazon there is PCIe Gen 3 NVME and PCIe Gen 4 NVME for sale I don't see this even mentioned on the Wikipedia page for NVM Express

genie megaways slot 2 slot The form factor is small and rectangular in shape, almost Crucial T705 PCIe Gen 5 NVME SSD, 14,500 MBs, 12,700 MBs Crucial T700