Hey y'all, been looking at that Geeek A1 case, the upcoming ASRock X570 Phantom ITX TB3, and this neat little PCIe to M.2 eGPU adapter: http://www.adt.link/product/R43SG.html I would wind up having the boot SSD running over TB3 from the rear I/O on the motherboard. Here's the case...I would definitely wind up modding or cutting holes in it for more cooling: https://www.geeekstore.com/shop/a1-mini-itx-case/ My plan would be to run the motherboard off something like this: https://www.hdplex.com/hdplex-200w-dc-atx-power-supply-16v-24v-wide-range-voltage-input.html Run the eGPU off something like this (or just get a more conventional SFX from SST, I'm a little concerned about the whine from the tiny fans): https://www.silverstonetek.com/product.php?pid=784&bno=24&tb=14&area=en This might be one of those "but why?" kind of builds, but I really like the idea of having everything separated, and I think I could get a really low footprint going this route...the tower is only around 3.6L, and the eGPU would basically just be the volume of the graphics card and PSU. I would definitely add some fans to the mix, maybe do some custom mounting around the eGPU, and maybe mod the case with a 140mm fan outside to help the CPU heatsink. I would also wind up having a free x16 PCIe slot on the actual motherboard that I'm not using. You have any feedback, thoughts, concerns, things I should take into consideration if I actually start buying pieces to this patchwork monstrosity?