The Corsair Obsidian 900D is Corsair’s new flagship cabinet that replaces the Obsidian 800D and is one of the biggest computer cases we’ve ever tested.
The top of the case is a big, meshed removable panel with a dust filter attached to it. But the best part about the 900D has to be its side panel, which has a big, smoked, acrylic window that lets you show off the innards of a system built inside. It’s a cinch to open the side panels using the provided buttons at the back of the case, which if pressed, pops the side panels out. Each of the sides of the 900D has two doors with one being the bigger door to access the motherboard area and the other one being a smaller one at the bottom that lets users access the hot swappable drive bay and PSU mounting areas built in the case. The interior of the 900D is as intimidating as the exterior with a huge space for installing XL-ATX and even HPTX boards and the entire motherboard tray is replete with strategically placed cable management cutouts covered by rubber grommets.
Cable management in the 900D is much better than anything we’ve seen till date because the case has a lot of room at the back of the motherboard tray with smart clips to hold cables while also keeping enough space behind the tray to close the side panel. Corsair has included a bunch of black cable ties along with the case as well to help users.
- Removable lower rad covers allow you to customize between cooling and clean, refined appearance
- Ten expansion slots for multi-GPU dream systems
- Case Form Factor: Full-Tower; Case Expansion Slots: 10
- Tool free side panel access to top panels
- Case Material: brushed aluminum and steel; Compatible Corsair Liquid Coolers: H55, H60, H75, H80i, H90, H100i, H105, H110
The Obsidian 900D is primed for liquid cooling as it has space for some of the most elaborate liquid cooling setups a person can think of. There is space for installing a full size 480mm radiator at the top, another 480mm at the bottom on one side, a 240mm on the other side at the bottom as well, a 140mm radiator at the rear and finally, a 360mm radiator at the front; you can go nuts with the 900D while building a liquid cooled rig. If you need more space (we hardly think you will), you can remove the hard drive cages and make more room. Most of the parts of the case use screws instead of rivets to allow for modding options which is a nice thing since a lot of enthusiasts are going in that direction now.
- Water-Cooling:The case can accommodate even the largest water radiators available today including those that you can plan on with a custom loop. With a permutation and combination you can increase or decrease the size of radiator you want to install on any particular spot. Giving you the ultimate sense of flexibility.
- Mother-Board Compatibility: It supports all the motherboard form factors ever made and maybe those even that'll be made in future. You can mount a mini-ITX to a HPTX motherboard inside and be still left for enough room to ponder about.
- Dual PSU support:This is a rarity in any commercial grade cabinet. You can mount two individual PSU inside the bottom chamber of the 900D in a vertical position. You want a huge wattage unit for the whole or want to divide the load between two units, it all depends on you and your configuration's requirements.
- CPU Back Plate Cutout:A cabinet of this size is obviously hard to move and open time and again. But this one comes with an open motherboard slot in the back, so that you can change the fittings for a new CPU cooler without needing to take out the whole motherboard outside! That's quality research right there.
- Ample of Dust Filters: It comes with four magnetic dust filters installed which eliminates the problem of a tedious cleaning session of such a beastly cabinet. Their efficiency ensures that your components stay clean and dust free even during a sand storm.
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.