While I'm impressed at the same time I'm confused why noone else thought of something like this. I'm still googling and reading and watching anything I can find about this crazyness.
I love the concept of moving PCIe to the other side. Tons of space for vulkan/dx12 pair of different manufacturer GPUs plus any number of slots for PCIe 4.0 SSDs (and if intel's to be trusted it'll go 5.0 in only a couple of years).
The modular I/O portion is fantastic, I can never have enough of USB slots and besides those don't have to remain 3.0x for eternity if I can switch them with new ones made by anyone, not only ASUS.
EDIT:
Man, on several sites some comment it sux as it can't work in their cases… But the point *is* to use nonATX case with it!
Also, what's shown is a simplified concept, not set in stone deal or a product you'll buy tomorrow in a store, it needs some feedback that's why it was displayed at Computex.