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Corsair Obsidian 900D ATX Super Tower Case w/ Window 4X5.25 9X3.5INT USB3.0 No PSU

Our Price: $369.99  CAD
Savings Code 79369-1259. SAVE $59.99 off our regular price of $429.98 if you buy today! Special price ends 12/2/2015.
BONUS! Get 1121 NCIX Rewards if you buy before 12/2/2015
After Mail In Rebate: $339.99 CAD
Save $30.00 with manufacturer's mail-in rebate!
Valid from Nov 25, 2015 to Dec 01, 2015. Limit 1 rebate(s) per customer. Other conditions may apply.
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   Shipping Weight:   47 lbs
   Part #: CC-9011022-WW
 May We Also Suggest
Product Videos    [ Edit ]

Features    [ Edit | History ]

What will you do with all this room?

Obsidian Series 900D is for serious builders with big projects.
Do you want to design your ultimate dream PC?
Add state-of-the-art liquid cooling or air cooling?
Build a quadruple GPU, dual CPU graphics powerhouse?
Or, just creat a monster file server?
If these are the kinds of questions you're asking yourself, you need a 900D

Quick Specs:
Material Aluminum Steel
Motherboard Supported Mini ITX HPTX EATX Micro ATX ATX
Color Black
Form Factor Tower
Number of Fans Supported 15
Number of Fans Installed 4
Number of External 5.25" Bays 4
Number of Power Supplies Supported 2
Number of Power Supplies Installed No
Number of Internal 3.5" Bays 9
Number of Total Expansion Bays 13
Number of Total Expansion Slots 10
Total Number of USB Ports 6

Specifications    [ Edit | History ]
     Number of External 5.25" Bays: 4
     Number of Internal 3.5" Bays: 9
     Number of Total Expansion Bays: 13
General Information  
     Brand Name: Corsair
     Manufacturer: Corsair
     Manufacturer Part Number: CC-9011022-WW
     Manufacturer Website Address:
     Product Line: Obsidian
     Product Model: 900D
     Product Name: Obsidian 900D System Cabinet
     Product Type: Computer Case
I/O Expansions  
     Number of Total Expansion Slots: 10
     Front USB: Yes
     Total Number of USB Ports: 6
Physical Characteristics  
     Color: Black
     Form Factor: Tower
     Material: Aluminum
Power Description  
     Number of Power Supplies Installed: No
     Number of Power Supplies Supported: 2
     Redundant Power Supply: Yes
Technical Information  
     Features: Removable Air Filter
     Motherboard Supported: ATX
Micro ATX
Mini ITX
     Number of Fans Installed: 4
     Number of Fans Supported: 15

Corsair CC-9011022-WW Customer Reviews

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding Corsair CC-9011022-WW reviews.
Experience: 80 Days
 Verified Owner
-Loads of room
-Plenty of cooling options
-Easy cable management
-Removable filters
-PSU mounts are well thought out
-Looks good
-Loads of room; this is a big case, don't plan on moving it around too much - or buy a hernia belt to go with it.
-Installing larger graphics cards is somewhat tedious.
-Had to sell one of my children to get one.
Overall, I'm very happy with the 900D. It's sturdy, easy to work with, and I'm never going to be short on fan/radiator mounting options. It's a much cleaner case than I have had in the past; the magnetic filters are very easy to clean and they cover the PSU vent as well. I also found that taking the case apart was pretty easy, especially when you need to get access to a specific area and you don't want to move the case (and you do NOT want to move this case). The only major problem I had was installing my graphics cards, there is surprisingly little space between the corner of the case and the expansion slot opening - so trying to get a thumbscrew in on a larger graphics card with an aftermarket cooler is a pain. Considering the rest of the build was dead easy, and the quality of the case overall, I'm totally willing to live with this. I can see myself hanging on to the 900 for a long time.

Experience: 7 Days
 Verified Owner
Lots of room, well engineered, no interferance with plugs or cables
Wish they would have instruction manual for removing panels
Great case over all, clean look, i dont regret it

Experience: 2 Weeks
 Verified Owner
Easy to work on and excellent cooling.
I just replaced my old VooDoo case with the Obsidian 900D.

The first thing you notice when you unpack the case is the quality of the material used and it size. I upgraded my water cooling to a three fan block and it fits easily. The only things which could be improved is access to the screws holding in the graphic cards. Once the unit was up and running the case air temperatures were about 10C lower than in my old case.

Experience: 8 Months
 Verified Owner
The size & ease of access and ability to add what I want pretty well where I want.

Haven't found any yet.
I bought an NCIX Dream Machine system which I modded that used this case and liked it so much for ease of access to everything while working on it that I bought a second 900D Tower for my workstation build which I am currently working on.

Experience: 6 Months
Needs wheels/casters so it is easier to move around. I keep a set of furniture sliders under the legs of mine at all times to make it easy to slide around to get to cables, etc. This thing with a decent water-cooled rig inside can be 75+ lbs.
Amazing Case for Water-cooling. I have 2 x 480 mm radiators, an EATX MOBO with water-cooled Intel CPU and 2 x water-cooled NVIDIA GPUs (a third one coming in the near future). Can configure your water-cooling loop basically however you want, tube or bay reservoirs, multiple pumps, custom mods, etc. This thing will swallow anything you throw at it. This review was modfied by poster l 02-10-14 12:54 PM

This review was modfied by poster @ 02-10-14 12:51 PM

Experience: 9 Days
 Verified Owner
Lots of room
perfect cable management
everything about it
biggest case out on the market, note this case is HUGE

Experience: 4 Weeks
 Verified Owner
Every inch of the case. It's absolutely awesome.
Only the shipping cost lol
There's too much to say, so I'll try to stick to main points.
It's huge, is an understatement lol, The window is perfect nice and big and an unobstructed view by any fans. Hot swap works great,nice to just toss a drive in, without having to open up the back for cabling.Great dust filters. And the i/o shield on the Asus Hero mobo matches the case color perfectly lol.

10/5 stars

Experience: 9 Days
 Verified Owner
-More space than most builds require.
-Great ventilation.
-Nice build quality.
-ODD drive's look silly.
-No stock ability to mount any 3.5" device for front access.
Great case with nearly endless potential. 18 usable fan mounts depending on configuration and an amazing amount of room for radiators.

 NCIX Forum Messages

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Messages about Corsair Obsidian 900D ATX Super Tower Case w/ Window 4X5.25 9X3.5INT USB3.0 No PSU

accessories for corsair 900d available anywhere? (Daniel_H- Apr 29, 15, 1 Replies) Read this message
how many fans (T-O-X-I-C- Nov 11, 13, 1 Replies) Read this message
It's in stock! (justmoe1- Aug 16, 13, 0 Replies) Read this message
NCIX Responded (sergegordy- Jul 03, 13, 32 Replies) Read this message
Guru3d 900D Review (justmoe1- Apr 24, 13, 7 Replies) Read this message
Obsidian 900D (sergegordy- Mar 26, 13, 9 Replies) Read this message
In store next week! (Bbot- Mar 20, 13, 16 Replies) Read this message
900D Shipping (maxime_l- Mar 14, 13, 8 Replies) Read this message
Should I? (Desmond M- Feb 23, 13, 1 Replies) Read this message
Pre-order wait times (Geoffrey_M- Feb 16, 13, 2 Replies) Read this message
Should I or not? (just_visiting- Feb 15, 13, 4 Replies) Read this message
Possible To Rotate Dual Power Supply Mount? (Mitch_F- Jan 31, 13, 2 Replies) Read this message

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Reviews from the Web

Below are reviews found on other web sites for this product submitted by customers.

Posted by: TheBigTroll1226 @04/23/13
Posted by: TheBigTroll1226 @04/17/13
Posted by: TheBigTroll1226 @04/17/13
Posted by: TheBigTroll1226 @04/17/13
Posted by: TheBigTroll1226 @04/17/13
Posted by: TheBigTroll1226 @04/16/13
Posted by: TheBigTroll1226 @04/16/13
Submit a review link   |   Latest 30 reviews
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First 30 days limited warranty through The remainder of the two year warranty is provided directly by the manufacturer.

Corsair's DRAM memory modules all carry a lifetime warranty. The Flash Voyager, Flash ReadOut, TurboFlash, Flash Survivor and Mini Flash products all have a warranty for the expected normal life of the product (10 years). The Flash Padlock has a warranty of 3 years. The HX, TX, and VX Series of Power Supplies have a 5 year warranty, and Liquid Cooling products carry a one year warranty. In general, this means Corsair products are guaranteed to operate, as specified by their datasheet, and in the operating environment for which they were intended, for the life of the product or the extent of the warranty.

For additional information and technical assitance, please visit Corsair Memory's support site at:

Corsair Technical Support

Phone:  1-800-205-7657

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