i like this concept but how would this work?
Majority of motherboards only suppot x4x4x4x4 bifurcation for 4 NVMes, but this would need to use split the x16 lanes into 8 either via a PCIe switch chip (PLX) for 8 M.2s similar to this highpoint card, or use x2x2x2x2x2x2x2x2 bifurcation ( in which i have never seen a motherboard personally).
otherwise it is a very cool concept