Corsair Obsidian 900D Super Tower Case

PRODUCT: Obsidian 900D
PROD LINK: Obsidian 900D Product Page
PRICE: $344.99 @ NewEgg
Price is at the time of testing!

Moving onward, we’ll look at the backside of the case in three parts. Here’s the top part, showing you that you have a good three stories between the top of the motherboard tray and the actual top of the case. Corsair was damn serious about adding all the radiator support they could to this thing, thus all the space up here. At the very top, you can see the two push buttons that disengage the side panel latches.

The fan seen here is a 140 mm version of the ones used on the front panel. You can use a 120 mm if needed. Note that the front panel is the only location not specified to take 140 mm fannage in the quick start guide, but I did see some extra tapped holes, there. Likely for the 360 mm of radiators Corsair says can fit there. I don’t do water cooling, so I can’t help you with the radiator stuff.

A little further down, we find no less than ten expansion slots. They occupy the middle fifty floors of this particular skyscraper. I have not found the pool, yet. This case is designed for some real monster motherboards, and it could well be you need all these expansion slots. I’m glad to see them.

Of course, no office building is complete without more than one power source. This monster comfortably holds two of any power supply you can think of. Except for perhaps those oddball Antec CPX units, and I’m sure you could MacGyver something for them. There is no size restriction here. Well… actually there might be, depending on how much water cooling gear you plan to stash in the basement, or how you plan to deal with the drive cages, but we’ll look at that in more detail later.

The bottom of the case. Nothing to see here, move along, folks.

Now, before I show you the top panel, there’s a trick to removing the filter mesh covering the top of the case. See that red arrow? There’s a hole right there. Push up on the mesh through that hole to disengage the catch, then slide the top right off in the direction of the arrow.

Fans, fans, fans. You can throw up to four 120 mm fans up here, or three 140 mm models. Or one honking big radiator, as you please.

Now, we’ll get into the case itself, starting with the lower section and its magnetic doors. These do not latch – they are magnetic closure only. That little latch thingy is just a little doohickey to push the door away from the magnets so you can open it.

Behold, the full-length magnetic filter covering the air intake on this side. There’s another one like it on the other side. Here, we also see two drive cages with room for a third. You could probably add a fourth if you decide you don’t like power supplies.