Addendum: I'm going to test this side-bracket focused build, and see how well it performs, and after that, I'm gonna rebuild inside the SG16 with the same components, and test if it performs equally good or better.
For the SG16, the radiator would sit on top, while still requiring some kind of bracket or mounting option, but it looks a bit easier to do. But for the GPU, one would need a vertical GPU mount - a 2 slot or slimmer one, that has to be adapted to the PSU opening. I tested it placing my deshrouded GTX 1660 into it, and it worked decently well, but a proper mount thats to be attached to the case front and bottom is probably the wiser choice.
In theory, both setups should weight about the same, because the S400 side-bracket one uses a side bracket, which adds more weight, while the SG16 would require a GPU vertical mount, which also adds weight.
The advantage of the S400 over the SG16 is: It would still be thinner and a little bit less tall, there is bottom ventilation, and GPU mounting is already vertical from the get-go.
The advantage of the SG 16 over the S400 is: The overall build quality feels more integral, "aus einem Guss" (in one pour), AIO mounting is a bit less complicated (potentially even allowing for T30s), and adding additional fans outside of the "regularly" prepared locations looks way easier. Oh, and the mesh patterns seem to be a bit more apart, but thats still up to testing. Oh, and in theory, it'd also be easily converted to air cooling, allowing up a tower cooler up to 172 mm tall.
Edit: After writing up the advantages, I think I actually might choose the SG16 over the S400 as main case for my workstation, and move the streaming system components back into the S400 after doing the tests. Would never have thought that, but well - it IS still different when having the case one wants to build with sitting in front of you vs. digging up any kind of information before buying the case.
cu, w0lf.
