I doubt that the fans can have 340mm as you assume if the case is only 240mm wide... ;-)
check with the manufacturer, they should know https://www.bequiet.com/de/case/1473
I ordered the case 1.5 weeks ago and if it arrives at some point in the distant future, I will answer this question here. Until then, I'll wait patiently until it arrives. But this may still take a while.
After all, the cabinet weighs 13 kg and is rather large and unwieldy. A table mount must therefore be capable of/offer the following:
Product dimensions Dark Base Pro 900 rev.2
Height
58.60 cm
Length
57.70 cm
Width
24.30 cm
Weight
13 kg
Furthermore, I would like to point out that a case with a glass side panel to view the inside of the PC does not necessarily make sense under the table.
Hi listen you should have enough space because I put two 140 fans so it takes up space and then I have the possibility to put two drives anyway the bottom drive I think you should have the space. See you later