SKU CC-9011022-WW
Obsidian Series™ 900D Super Tower Case

$369.99 USD

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The Obsidian Series™ 900D Super Tower PC case gives you lots of room, serious expansion flexibility and incredible cooling performance in a rugged, builder-friendly design.

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The Obsidian Series: Designed by builders, for builders.

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 create a monster file server?

If these are the kinds of questions you’re asking yourself, you need a 900D.

Serious Expansion Flexibility for Serious Builders

We don’t need to tell you that there’s no such thing as too much room. We’ll just let the numbers speak for themselves:

  • Ten expansion slots
  • Fits up to nine hard drives or SSDs, with three hot-swap mounts
  • Four 5.25” optical drive bays
  • Room for dual power supplies

And if nine hard drives or SSDs aren’t enough, you can expand to 15 drives by adding additional drive cages (available separately).

Incredible Cooling Performance and Potential

A cooling-optimized case design requires three things: good passive ventilation, flexible fan mounting options for good airflow, and the room to add sophisticated active cooling systems. The Obsidian Series 900D starts with a clear airflow path from the intake fans to the case interior, with no drives in the way. But, that’s just the start.

  • Includes three AF120L 120mm front intake fans and one AF140L 140mm rear exhaust fan
  • 15 total fan mount locations
  • Five radiator mounting points
  • Four removable dust filters

Easy to Build With. Easy to Live With.

System builds should be straightforward and easy, without your PC case getting in the way. And, reconfigurations and upgrades should be just as simple. An enjoyable build process with great-looking results is a huge part of the pride of ownership that comes with building high-performance PCs.

The 900D can help make it all happen with tool-free side panel access, hard drive installation, and optical drive installation. Inside, you’ll find a CPU backplate cutout and rubber grommets on the cable routing holes. There’s generous cable routing space behind the motherboard tray, and snap-down cable latches help you create clean, easy-to-modify cabling that doesn’t rely on dozens of zip ties.

You also get modular hard drive cages, and the dust filters and fan covers are easily removable for cleaning and maintenance.

Understated Overkill

Let the beginners use cases that look like they’re going to turn into a giant robot. Obsidian Series 900D is built on a steel and cast aluminum frame, with solid steel panels and a fully painted interior. The brushed aluminum fascia resists scratches and fingerprints, and it’s just plain fun to put your hands on it.

Case Dimensions
692mm x 252mm x 650mm
Maximum GPU Length
Maximum PSU Length
Maximum CPU Cooler Height
Expansion Slots
Case Drive Bays
”(x4) 5.25in (x9) Combo 3.5in/2.5in”
Form Factor
Case Windowed
Case Warranty
Two years
Corsair Link Enabled
Case Material
Aluminum, Steel
Radiator Compatibility
120mm, 140mm, 240mm, 280mm, 360mm, 420mm, 480mm
Compatible Corsair Liquid Coolers
H55, H60, H75, H80i, H90, H100i, H105, H110
Case Power Supply
ATX (not included)
Drive Bays 3.5"
Drive Bays 2.5"

Obsidian 900D Spare Parts List

1 CC-8930101 900D 1x Bottom side door
2 CC-8930102 900D 1x Front I/O Panel Door Cover
3 CC-8930103 900D 1x HDD Drive Tray
4 CC-8930104 900D 1x ODD Drive Bay Cover
5 CC-8930105 900D 1x Front Panel Aluminum Door
6 CC-8930106 900D 1x Front Panel Dust Filter
8 CC-8930108 900D 1x HDD drive cage
9 CC-8930109 900D 1x Left Windowed Side panel
10 CC-8930110 900D 2x Replacement Bottom Door Lock Mechanism
11 CC-8930111 900D 2x ODD Drive Bay Retention Clips
12 CC-8930112 900D 1x Right solid side Panel
13 CC-8930113 900D 1x Top Dust Panel Filter.
14 CC-8930116 900D 2x Bottom Side Door Magnetic Dust Filter
  CC-8930114 900D Accessory kit
  CC-8930115 PSU Y-Cable
  CC-8930118 900D HDD Sata Hot Swap Cable.
  CC-8930175 Cable Management Clips (3)
  CC-8930189 900D Door Latch Rail Clip 4x
  CC-8930190 "Removable Fan(s) Brackets (both) 900D Left & Right Radiator Mounting Bracket & Left & Right Fan mounting Bracket"
  CC-8930262 Case Thumb Screws x16



Posted on   April 16, 2013

Obsidian Series 900D is on the Hexus Wish List!

"This is very much a no-holds-barred approach to liquid cooling. It doesn't matter if the chassis won't fit beneath your desk; it doesn't matter that there's little in the way of soundproofing; what matters is that the 900D looks fantastic, it's built like a tank and it can house more radiators and fans than any rival we can think of."

Full Review!

By Hardware Secrets

Posted on   July 15, 2013

Obsidian 900D wins Editor's Choice Award from Tweaktown!

“Corsair is now delivering the Obsidian Series 900D that really just kicks ass and takes names. I have a feeling it will be quite some time until there is another mainstream company that can come up with a similarly designed chassis with these sort of offerings, and at a price that any enthusiast will have no issues paying to get the best of the best.”

Full Review!

Obsidian Series 900D Super Tower PC Case
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