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.
Just like with past models the PSU is installed from the rear of the case so you will first need to mount the bracket as seen above.
Even with a 360mm radiator at the front and the drive cage there's still plenty of room for units up to 1KW.
We've seen roomier mid-towers in the past but even after placing an ATX mainboard inside the Pure Base 500 Window looks comfy.
We mounted an 280mm radiator at the front but as mentioned many times already you can easily mount an 360mm one (up to 40mm in thickness) if you remove the bottom drive cage.
At the top there's enough room for a 240mm radiator (even for a slim 280mm with slim fans) but even though be quiet! has allowed for more space than with similar mid-towers you may still have clearance issues with very tall memory modules.
I don't know of any CPU coolers with a height of 190mm but if there are any you can use them in the Pure Base 500 Window.
Without mounting a front radiator, you have enough room for up to 369mm long graphics cards (and with a radiator you have roughly 320-330mm).