Hey @Metal
https://rog-forum.asus.com/t5/rog-zephyrus-series/has-anyone-installed-a-pcie-5-0-nvme-drive-in-thei...
The processor supports PCIe 5.0, and from what I could tell on my 2024 model, there is indeed a 5.0 slot, but it's connected to the GPU. I have a second SSD that I use, and it's PCIe 5.0, but the two available slots are PCIe 4.0.
