The Define Nano S presents a completely open interior to the builder, with no drive bays or brackets in the way at all. This serves to make the build very simple, and also makes a build look very sparse unless you're using a custom loop.
I'll pause here, as usual, to discuss the all-important side panels. These are of the traditional slide-off variety, and have the advantage of captive thumbscrews, which is a nice touch.
As this Nano S is the windowed version, there is a (very clear) window on the front side panel, while the rear panel is lined with an sound-reducing insulation.
Moving past the side panels, we'll take a look inside the front of the enclosure, which first requires the removal of the front panel:
This is easily done, as the panel simply snaps into place. This cover is also lined with insulation.
And now we have a look at the removable screen filter for the front intake:
The front screen filter is magnetically attached
Inside the front of the case there's a single 140 mm fan pre-installed, and room for a pair of fans or a radiator up here if desired.
Moving to the rear of the enclosure, there is a 120 mm fan installed for exhaust, and the two expansion slots sit just above the ATX power supply mount.
The case floor offers a mount for a hard drives in the form of a removable bracket, to the right of the (padded) PSU mounting location.
Turning the case around now we have our first look behind the motherboard tray:
This rear portion is a great design, and I appreciate it all the more as I work with a lot of cases. There's enough depth to allow easy cable routing, and further improving this aspect of the build are velcro ties for flexible cable management. Storage is back here as well, which we'll get into shortly.
Next we'll add the system components.