BUILDING THE SYSTEM
As always, the purpose of this section is not to build a functional system but rather to showcase what you can expect from the case at hand in terms of interior space.
First i mounted the PSU and connected it with the CONNECT module as seen above.
Since this is an E-ATX mid-tower an ATX motherboard leaves plenty of room around it.
With room for 165mm tall CPU coolers most models in the market will feel right at home inside the Q503 and as for the top here you can mount either an 240mm or an 280mm radiator (i used an 280mm one).
The front has room for up to 360mm radiators but due to thickness (35mm max) the only one compatible i had was an 240mm one. As for graphics cards even with a radiator installed you still have room for roughly 320mm ones.