BUILDING THE SYSTEM
As always the sole purpose of this section is not to build a fully working system but rather to showcase what you can expect from the case at hand in terms of interior space.
Unfortunately we don't have a full mATX mainboard to showcase in the Deep Silence 4 but as you can see our ASROCK mainboard seems out of place.
There's plenty of height for very large CPU coolers up to 160mm tall.
If your graphics card is up to 265mm in length then you can keep all of the drive cages. However if you have a graphics card over that and up to 395mm long you will need to remove one (or both if you have them in SLI/CF).
Even the largest PSU fits in the Deep Silence 4 without issue.