Feedback on a dual RTX 4090 build

It says dual 4090's in the topic but I'm after have a build that I can extend to 2 GPU's should the need arise I have researched quiet a bit

2 Check your case Three unused expansion slots Reserving clearance around the graphics card equivalent to an unused expansion slot will typically improve

20_7_23 lottery result High-perfomance for AI inference: Support NVIDIA RTX 4090, RTX 4080 Super etc 304230522242 B-Key + Micro SIM Slot; 2230 E-Key x 1; Onboard TPM

22723 kerala lottery result The only caveat here is that while PCIe should work on any PCIe slot from to , you'll not magically get PCIe speeds by plugging