No RGB :)
Two slots for memory modules - now it is already clear that 2-rank modules give a performance boost to Ryzen, so for this board you need to look for dual-rank memory modules, but, for example, the new Crucial Ballistix MAX memory is all peer-to-peer - even modules on 16Gb, and other manufacturers will have to look and choose.
The nvme heatsink, located next to the first graphics port "from above", prevents the lock on this x16 slot from being unlocked, on the other hand, the fan of the video card itself interferes and you can't get there at all because of the lower nvme heatsinks. Removing a card is inconvenient.
Radiators nvme - backlash without disks installed in them, it turns out to rattle, although they sat tightly out of the box and did not sound.
The squeak of power chokes, the problem is not directly massive - but it occurs quite often all over the world, i. E. for different parties. You can just search for the word unify-x coil whine, there are topics, even on the official MSI forum. So far, users receive replacement boards and there is no more squeak. My copy squeaked very loudly in games, and in the AIDA64 cache test there was even a very loud whistle in the copy test, even with a weak processor and a video card with an x1 slot - there was still a squeak at minimal load. Previously, it was found that the pressure of the radiator on the VRM and the thermal pads there are insufficient, one user experienced, i. E. at random - I found out which module squeaks while pressing each finger in the load :) it turned out that the VRM modules were soldered differently in height and the pressure was uneven. In general, the squeak does not affect performance or performance, but it is worth considering.