No, just multiple CX6-DX I'm currently stuck because the only boards we can find that have enough PCIe lanes exposed to do 800g (64 for NICs + close to 64 for

No, just multiple CX6-DX I'm currently stuck because the only boards we can find that have enough PCIe lanes exposed to do 800g (64 for NICs + close to 64 for NVME, with them more or less equally divided between sockets) have only 3 xgmi links to the 2nd socket, rather than 4. That causes uneven loading on the xgmi links, which causes saturation issues well below 800g EDIT: I didn't realize the CX7 specs were public; I no longer feel quite so special :)