- With decrease of dazzle for the fan on top and side panel are of course in accordance with the "internal organs" of the PC be heard more clearly.
- Dust protection for ventilation only forward (for both) and bottom (power supply and fan)
- Optional Dust retrofitted each individual fan is possible -. Have no temperature tests regarding airflow resistance and made (dust filters are already but ordered)
- No dust on the vertical louvers (both sides front)
when the lid of the housing is closed, the front fan, the air just above the vertical air vents on the sides of the front suction, but I do not know how that affects the airflow / cooling - let's see if the summer is here and I close the front must be open for more air flow ... would naturally goofy ...
the USB and audio connectors on the top and the power and reset button located there are beautiful within easy reach, but without eingestöpselte devices dust - remedy dust cover simple USB.
For more details about the construction and operation and internal structure I've found a great video:
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All in all I'm very happy with my fractalR4 and hope the information will help others in the housing search, the search is no transformer, but rather plain looking for under the desk.