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Cooler Master HAF XB EVO - High Air Flow Test Bench and LAN Box Desktop Computer Case with ATX Motherboard Support

  • Steel body, Front Mesh, Plastic bezel ATX Desktop
  • USB 3.0 x 2 (internal), Audio In & Out x 1 (supports HD Audio) Front Ports
  • 2 External 5.25" Drive Bays
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Learn more about the Cooler Master RC-902XB-KKN2

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Customer Reviews of the Cooler Master RC-902XB-KKN2

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  • Matthew H.
  • 4/24/2015 7:07:38 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsFantastic Case

Pros: Tons of space, modular, fantastic air flow if you add a few fans, easy to work in, doubles as a test bench, removable motherboard tray, did I say tons of space! This is by far the best case I have ever built a system in.

Cons: The drive bays are in the bottom compartment under the motherboard and may be difficult to make changes to if you don't plan ahead. You must purchase additional fans to create proper airflow. Even with this I still give this case 5 stars because of outstanding design.

Other Thoughts: I have been building systems for about 20 years and this is the first case that I liked so much that I had to write about it. I hope that it starts a new trend in case design. I will never use a tower again.

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  • Andy R.
  • 4/21/2015 10:32:56 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsBest Case scenario

Pros: Roomy, well laid-out, stable, easy to work in and to carry cube of a case; separate sections for optical and hard drives (removable cages, yet) and PSU, and separate level for horizontally mounted motherboard; MB tray is removable; numerous fan mounts; hot-swap or tool-less interior hard drive mount options; all metal edges are rolled - no cuts!; filters for PSU air intake; reasonably inexpensive - wish had bought it sooner...

Cons: Can be a bit difficult feeding power and data cables thru, especially if using a large PSU - but at least no cut fingers! Only included 2 120mm fans mounted on front...

Other Thoughts: Likely the easiest case i've ever worked with, despite the cable wrangling; no heavier than a loaded full-tower when everything's installed, but far easier to carry and move; large thumbscrews are well knurled and have phillips slots; but CM ought to include matching 80mm fans for rear next to hard drives, and 1 120mm in back near CPU - not everyone will need the lid mounted 200mm (yeah, right...)

1 out of 1 people found this review helpful. Did you? Yes No

  • Jeff S.
  • 4/18/2015 8:02:28 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGreat case.

Pros: Lots of room, quite, well made, relatively inexpensive, great positioning of most items, hot swap drive bays.

Cons: Needs a fan mount blowing air over the hot swap drive bays. This may be why others had issues with their drives dying. I highly recommend anyone that gets this case put an 80 mm blowing air over the hot swap drives. I mounted mine on the side of the case blowing toward the 5 and 1/4 bays.

1 out of 1 people found this review helpful. Did you? Yes No

  • Tyson R.
  • 4/14/2015 2:17:55 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsAlmost perfect case

Pros: fans are decently quiet in the front. Not as silent as some, but much more silent then the Jetflow 120 by the same brand. Clean design that is extremely easy to hook up to all your hardware. Removable motherboard tray makes install a breeze. I have severe arthritis, and I didn't have a problem with this case.

front hard drive bays are just slide in and lock, which makes upgrades of hard drives very simple. this layout has its pluses and minuses. System stays very cool because air flows across the board without blocking anything. also with a 200mm fan added to the top, hot air that is rising is taken out of the case that much faster. I will be adding a front radiator to it for overclocking experimentation. The case is very well built and feels sturdy. No flexing parts that your scared will break or cause vibrations. It really feels like they tried to make it feel like a product you would be proud to show off. The price for around a hundred bucks really is a steal for the quality level.

Cons: case only allows for 2 cd rom type devices. This may be a problem for people with lots of fan adjustment plates on the front that they want to add. For me, 2 was enough for my drives and that's all I needed. My blu ray drive didn't evenly line up when locked into place in the case, the right side is slightly pushed in more then the left. The alignment problem wasn't sever, but may annoy some people if their case comes this way.

Other Thoughts: In all, a near perfect case. If the fit on the rom drive bay was perfect, then I really wouldn't be able to find any fault at all. Its made for ease of install and excellent airflow. If you find it difficult to install into many cases because of arthritis, you may find you can still use this case. Ease of install, great airflow, good price, whats not to love?

1 out of 1 people found this review helpful. Did you? Yes No

  • Daniel W.
  • 4/10/2015 12:21:55 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGood but a few caveats

Pros: Very good tool-less design for the most part, especially the drive cages and X-dock. The 5.25 bays are not so well done. No sharp edges, well finished panels.

Overall very quiet with the supplied fans. I also added low noise 80mm fans as intake for the inner drive cage.

Cable management is easy, when viewed from the top, but it’s a rat’s nest under the motherboard. Of course, none of that is visible so it isn’t worth a lot of effort to tidy that up.

Supports 160mm CPU heatsinks, although not with an optional 200mm top fan.

Plenty of room for the longest video cards (less so with a front radiator).

Easy access to the MB, slot cards, CPU cooler, etc. Easy access to the inner HDD drives but be sure the power and data cables are toward the outside.

Cons: The 5.25 inch bays have no connection at all on the right side. Not even screw holes. Even if it did have screw holes, one would need to remove the X-Dock bay to get to them. The right side only has some compression fingers that are not very helpful. This is OK for a full size device like an ODD, but not acceptable for a short device like most fan controllers. Knock off a star for this. Definitely not fan controller friendly.

Appears to be very little cooling air available for the X-Dock drives. I didn’t knock off a star for that yet because I am not sure yet if this is going to be a real problem.

One will probably need SATA Power cable extensions to get power to the inner HDDs without inserting them backwards. The power and data connections need to be toward the outside or replacing them later would probably require removing the MB tray.

Changing out whatever I have in the 5.25 inch bays will probably require removing the motherboard to get sufficient access.

I would have preferred the clear top panel rather than the mesh, but Cooler Master seems to be perpetually out of stock on this part.

Also having a few spare X-Dock drive holders would be helpful, especially for 2.5 inch HDD/SDD users since these are not as easily swapped. But these too are perpetually out-of-stock.

The red power LED is blinding bright and not well diffused.

No air filters for the 80mm fans in the back. No filters for the side or top ventilation panels, nor for the bottom holes. The front intake screen does have a fine mesh so it should act as a filter, but removing it would be annoying since the entire front assembly needs to be removed. I’ll probably just blow out dust from the back. I recommend making sure the case is at a slight positive pressure.

The X-Dock is giving me problems but I don’t know why yet. Sometimes a hot-swap works, and sometimes I get a BSOD in Windows 7 the moment a new drive is inserted.

Other Thoughts: Be aware that getting the X-Dock bay to work correctly as a hot-swap bay will often require enabling “hot-plug” in the BIOS for those ports, and make sure they are set for AHCI. Even so, I did get a BSOD twice when inserting a drive, and once Windows 7 just froze up. So I am not fully confident in this function.

There is a comment in the CM Fanzone forums from a moderator that states the X-Dock bays do not support two SATA III drives at 6.0Gb/s. “The most it can support is either 1 x SATA 3 or 2 x SATA 2 drives.” This isn’t in any published spec.

Would be nice to have one extra 3.5 inch bay for other devices like a multi-card reader.

CM should consider a way to get additional air flow to the X-Dock bays. Perhaps an optional side-panel with an 80mm fan, or front ventilation slots with a slot blower either side of the bays.

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  • Nicholas W.
  • 4/7/2015 5:54:34 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsExcellent case for a builder. However, your mom won't necessarily appreciate it.

Pros: This is a pretty nifty case if you want something other than the default tower setup. The motherboard tray is removable and it has a nice dual "hot" swappable drive bay on the front. Actually, I'm not sure if they are actually x-dock is actually hot swappable, because windows didn't recognize the new drive I inserted, but then again, I think it was a bad drive than an issue with the docking system. Regardless, if you are the type that has to check drives all the time, this is a really nice setup.

There's plenty of ventilation, and the sides and top are easily removed and it has some prepositioned holes on top for a radiator.

Cons: There's limited access to the area below the motherboard, once it's in place. You can just slide it out of the way, but it does make plugging in your SATA drives interesting if you are being particularly lazy. The x-dock bays solve this problem, provided that you plugged them in from the start.

If you fail to hook up those bays in the beginning, AND are being lazy by not removing the motherboard tray, plugging the SATA cables into the X-Dock are near impossible. Also, you can't use a 90 degree plug because of the way they are attached to the controller board. Kind of sucks since I only had 90 degree SATA cables at the time of assembling, which is why I mention the knuckle busting ordeal at the beginning of this paragraph.

Fairly large footprint, which you should already know, based on the pictures, but I thought I'd mention it anyway. (1' 5.4" X 1' 1")

Other Thoughts: This won't be an issue for most people, but I bought this case for my mom, due to the design of her desk. The vents on top can pose a hazard since it gives direct access to the motherboard and CPU fan. I had to warn her not to put anything on top that could fall through. This case really is overkill for her, but as a builder, I really liked many aspects of the case. And was in awe by the design. I considered buying her a new one and keeping this one for myself. Also, related to mom, the power button is a bit hard to find when it's shut off. I placed the Intel sticker next to it to help mine out. When it's on, though, it's super easy to find, since it lights up.

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  • kirby m.
  • 3/27/2015 9:03:13 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year

5 out of 5 eggsCooler Master Rocks!

Pros: I bought my last CM case in 2009 (Cosmos full tower) and thought it was a good design so when I got the bug for another build cycle, I started with CM and saw the XB EVO. After a little research and reading the excellent posts on Newegg, I bought it. I had to find one in Vancouver! (live in NV) Newegg sold out. I am a design engineer (EE) and really appreciate the thought that went into this case. The idea of building from the top rather than the side is excellent. The removable MB tray is great. I went with ASUS Sabertooth Z97 and that strong PCB mounted to the tray is very solid. I see the concerns about space in the bottom area but as another owner pointed out, all it takes is a drill/bit to adapt this case to your design. Also I pulled the hot swap board as others suggested, just don't need it, plenty of room for SATA cables.

Cons: None

Other Thoughts: Construction/workmanship is excellent, disassembly is easy, I won't buy another tower.

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  • Tim M.
  • 3/27/2015 6:18:24 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsLOVE this case

Pros: Was in the market for a new gaming rig and decided to try something different going with this cube shaped full ATX case. I have to say Cooler Master engineers deserve a beer for this one, they really outdid themselves. This case is clearly designed by gamers, for gamers. It is an absolute dream working inside this case. It is meticulously designed and well-thought out. You can see every inch where the designers stopped and said "hey, lets do this instead because it will make someone's life so much easier."

1. Sturdy
2. Looks good
3. Well ventilated
4. Amazingly accessible from every possible angle
5. Surprisingly lightweight

To summarize, this case is simply FUN to work on. I dont know what it is, but the ease of access to every possible angle makes working on this case a RELAXING event. Not that working on other cases is stressful, but what I'm saying is working on THIS case has a calm soothing effect :) Everything is exactly where you need it, and just when you're about to reach for something and predict "oh boy I cant wait to remove this piece, I'm sure it'll be annoying.....wait a second that was easy, man they did it again!"

Well done Cooler Master

Cons: There is absolutely nothing whatsoever to say bad about this case.

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  • Nicholas P.
  • 3/25/2015 12:01:36 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsUpdate..

Pros: Case looks nice, works well.

Cons: The manufacturer response to my febuary post shows they still didn't even bother to read my review. I posted stating I did not know the name of the part I needed replaced, TWICE! I even put that clearly in the comments section of my RMA submission, with pictures of the USB ports failing to power on USB drives. I've still not been sent the correct part, I'm requesting a refund and will not be buying any CM products again. If it works perfectly for you, great, if you have to RMA something - be prepared for terrible service that doesn't pay the slightest bit of attention to your details.

Manufacturer Response:

Good Afternoon Nicholas,

Although we have been delayed due to replacement part availability, it looks as if your correct part will be arriving shortly with an ETA of April 1, 2015 as it was approved and corrected within 24 hours of your original submission back in 02/18/15. Once again feel free to contact us for further questions and concerns as we are readily available through our CM Fanzone via Live Chat, Support Tickets, and Phones at the links below.

Felinni M.
CMUSA Support

0 out of 6 people found this review helpful. Did you? Yes No

  • Karl S.
  • 3/22/2015 11:30:25 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

1 out of 5 eggsSpaceCorp Review - RC-902XB-KKN2

Pros: - Looks nice
- lots of removable covers to access things

Cons: - Hard to reach power cable plugs
- Wasted front drive area because drive bays are not standard (two like left side would have been better)

Other Thoughts: We are IT professionals,
this product is Not recommended !

Manufacturer Response:

Good Afternoon Karl,

Our HAF XB was designed to accommodate multiple drives and to cater to a large demographic that may be able to use the 5.25" drive bays for accessories such as reservoirs for their custom water-cooling loops, fan controllers, Hot Swap Bays, and so forth. We provide the end user to customzize their builds to their hearts content, which can easily be worked around if they are not required. Drive bays have also been the standard for a couple decades with the recent resurgence of removing them due to the increased HDD sizes and space saving SSD's becoming widely available.

If you have further questions or concerns you can always contact us through our CM Fanzone via Live Chat, Support ticket, or Phone at the link below.

Felinni M.
CMUSA Support

1 out of 11 people found this review helpful. Did you? Yes No

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