Inside the Node 605
Removing the thick and heavy top panel, flipping it over, you can see it is covered as much as possible without conflicting with its fit, with thick sound absorbing material to help keep noise down - nobody wants extra noise in an HTPC environment.
Looking from the back of the 605 forward, you will see the left side contains most of the front I/O wiring, and it's bundled nicely for transit. On the right is the pair of HDD racks that remove with a couple of screws to allow you to place up to four drives there.
Looking now at the right side of the chassis, you can see that Fractal Design has filled the first hole with a standard 120mm case fan, the other hole is left up to the buyer to decide if they want it, or if their CPU cooler will allow for it.
Looking at the back of the 605, there is the rear I/O and the section that is passive ventilation at the moment, but can house an optional pair of 80mm fans.
The seven expansion slots are pushed to the back of the chassis and are why there is the external cover over the screws. As for the power supply area, there aren't any support pads or a gasket to remove any vibrations - the PSU is supported by the back of the chassis only.
With the drive rack still in the chassis, you can't see the 120mm fan yet, but you can see how if you install the PSU on the right, the fan in it can draw through the mesh that is visible.
At this point I stood the chassis on its left side, removed the HDD trays and the center support bar. Not only do you now have unblocked access to the motherboard tray, the case is still very structurally sound without the support bar in place.
The wiring in the chassis is all black, even down to sleeve used on the fan wiring. From the front I/O you have the front panel connections, reset, USB 2.0, USB 3.0 with a tail allowing USB 2.0, and then there are the HD Audio and Firewire connection to the right.