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COOLER MASTER HAF series RC-912-KKN1 Black SECC/ ABS Plastic ATX Mid Tower Computer Case

Item #: 9B-11-119-233  |  Mfr. Part #: RC-912-KKN1  |  UNSPSC: 43201601
$69.99 Save: $10.00 (14%)

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    Top Favorable Review

    Great case for my first build

    -well written/drawn instructions -lots of space -well build -easy to disassemble -super bada** looking -can fit about a bajillion and five hard drives if that's your thing. -good airflow (enough for me), especially with all my fans. Read more
    — Linda S. 2/10/2011

    Top Critical Review

    Color Blind Manufacturer

    The person that assembled thias must have been color blind. I spent the better part of 3 hours trying to figure out why only the "reset" LED would come on when I plugged it in. I took the face off the front of the case, this after trying several ... Read more
    — Charles W. 12/24/2011

    Quick Info


    • Limited Warranty period (parts): 1 year
    • Limited Warranty period (labor): 1 year

    Cooler Master HAF 912 Mid Tower Chassis

    Cooler Master’s HAF 912 further enriches the HAF series by adding a compact, yet fully featured mid-tower solution for enthusiasts and budget conscious gamers alike. Its seemingly small exterior supports a plethora of interior features such as twelve devices and high end GPU cards.

    The HAF 912 embodies the rugged aesthetic and qualities of its brethren while remaining attractively priced. Its traits more closely resemble that of a mid to high-end case than that of other cases in its price range. The HAF 912 pays tribute to the legacy of HAF 932 & HAF 922 in ease of installation, high airflow, and compatibility with water cooling hardware.

    HAF 912 is the most compact solution in the HAF Series that still provides full desktop tower component support.
    The HDD cage can be easily removed to accommodate long high-end graphics cards. Rotate the cage 90 degrees to adjust your system airflow and cable management setup as you need.

    Technical Specs:

    Model RC-912-KKN1
    Color Black
    Dimension 230 x 480 x 496 mm / 9.1 x 18.9 x 19.5 inches
    Weight 17.8 lbs
    Material SECC / ABS Plastic
    M/B Type ATX / MATX
    5.25" Drive Bay 4 Exposed
    3.5" Drive Bay 1 Exposed (converted from 5.25" bay) 6 hidden
    2.5" Drive Bay 2+2 (converted from 5.25" bay) 4 hidden
    I/O Panel USB 2.0 x 2, Audio x 1, Speaker x 1
    Cooling System Front: 120 mm fan x 2, 1200 RPM, 17 dBA(one is optional,can be swapped for one 200mm fan)

    Top: 120 mm fan x 2 or 200mm fan x 1(optional)

    Rear: 120 mm fan x 1, 1200 RPM, 17 dBA

    Side: 120/140 mm fan x 1 (optional)
    Expansion Slots 7+1
    Power Supply ATX PS2 / EPS 12V (optional)
    Warranty 2 Years
    UPC Code 884102009877


    • newegg Superior Expandability and Expansive Space The Cooler Master HAF 912 boasts 4 exposed 5.25", 1 exposed (converted from 5.25" bay) and 6 hidden 3.5", 2+2 2.5" / 1.8" HDD/SSDs drive bays (via the 3.5’’ to 2.5’’ adapter) as well as 7+1 PCI expansion slots for increased expandability. 3.5’’ HDD cage can be rotated 90 degree or removed to fit long graphics cards. The bottom mounted 2.5-inch drive cage can also be mounted on top of the bottom half of the 3.5-inch drive cage if more room is needed at the bottom of the case.
    • newegg Excellent Cooling Solution – 200mm Megaflow Fans and Water Cooling Support The Cooler Master HAF 912 features one front and one rear 120mm fans and support another front 120mm (two front fans can be swapped for one 200 mm fan), one side 120/140mm and two top 120mm ( or one top 200mm ) fans for peerless air cooling performance. The HAF 912 also has pre-drilled outlets and retaining holes, and accepts two external radiator 120mm fans for building water cooling system.
    • newegg Flexible Cable Management The 16mm width between side panel and motherboard tray provides sufficient space for hiding cables. HDD cages with holes allow easy cable routing while modular notches tie cables neatly, leading to better internal airflow.
    • newegg CPU Retaining Hole and Removable Dust Filters CPU retaining hole allows easy heatsink installation and removal. The dust filters on the bottom and front cover block dust outside of the enclosure and is removable for easy cleaning.
    • newegg Support for Long Graphics Card The Cooler Master HAF 912 supports high-end graphics cards like ATI HD 5970 and NVIDIA GeForce GTX480 after the removal of the 3.5’’ HDD cage.
    • newegg Convenient Front I/O Panel and Top Platform Convenient front I/O panel offers easy access to two USB 2.0 and two audio ports. Top platform provides room for your personal belongings, like your cellphone or keys.


    Learn more about the Cooler Master RC-912-KKN1

    Customer Reviews of the Cooler Master RC-912-KKN1

    Do you own this product? WRITE A REVIEW

    5 out of 5 eggs Based on 1662 Reviews

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    • Filter Results
    • (1484)
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    • (56)
    • (1)
    • Steven H.
    • Verified Owner

    5 out of 5 eggs Easy install

    Pros: Case features plenty of room, and offers room between the motherboard tray and the back outside panel (which is removable, which was a huge help) for easy cable management. Hard drive bays were well located (and supposedly adjustable, although I didn't have need to test that) and allowed plenty of room to install cords.

    Cons: Not a major con, but there was not enough room between my fan/radiator for my CPU cooler ( CORSAIR Hydro Series H50 120mm Quiet Edition Liquid CPU Cooler – Intel Only) and the 200mm fan I wanted to install at the top of the case, so I had to move the 200mm fan to the front, and install a 120mm on top instead. Not enough for me to take an egg off, but it is something to be aware of if you're using a CPU cooler with a larger radiator.

    Bottom Line: For a relatively low priced case, I was extremely happy with how it functions and looks.

    Did you find this review helpful? Yes No

    • Rebecca P.
    • Verified Owner

    5 out of 5 eggs Fantastic for Beginners - LIKE ME!

    Pros: Easy to take of side Panels
    Comes with 2 fans
    Very nice and easy to install HDD and SSD
    Comes with Brackets and Cable Ties for cable management
    Cables can be routed underneath motherboard
    Very VERY Spacious

    Cons: The Front Panel USB, Headphone jack, and MIC jack all feel cheaply made

    Bottom Line: Extremely nice for beginners, it DOES fit Micro ATX boards like the description said as that is what i put into it. I have a 3 year old OEM and i wanted a bigger case for for better air flow and it fits and breathes just fine.

    I will be ordering another one in about 1-2 weeks for my newer build that ill be working on, I LOVE IT THAT MUCH <3

    Seriously though, if youre a beginner, and you like simple, open cases that are easy to use and set up, this is the case for you.

    Did you find this review helpful? Yes No

    • Stephen M.
    • Verified Owner

    5 out of 5 eggs Really Good Case

    Pros: This case excels in every category I care about. It looks nice. It's build well. There is plenty of space. You have good airflow options. You have pretty good cable management, and the price is fair.

    Cons: While there is space for more this case only comes with 2 fans. There are slots for cable management, but they are open no grommets. There is no basement the power supply and cables coming from it are open. The 5.25 bay covers are a little flimsy. For the price you can't really expect all that which is why I didn't subtract any eggs.

    Bottom Line: I would buy this case again.

    Did you find this review helpful? Yes No

    • Mr. p.
    • Verified Owner

    5 out of 5 eggs great cooler

    Pros: went back and forth with the idea of water cooling my 4790k but, i'm not overclocking it or anything crazy. i bought this and added corsair 2 sp120 fans with the mounts included in the evo kit. stable system, no heat issues!

    Cons: n/a

    Did you find this review helpful? Yes No

    • SmartBurst .
    • Verified Owner

    5 out of 5 eggs Nice Case

    Pros: Excellent case. Love the drive mounting hardware!

    Cons: None

    Bottom Line: Nice solid case for the price!

    Did you find this review helpful? Yes No

    • Chris K.
    • Verified Owner

    5 out of 5 eggs This case is a beast

    Pros: I didn't realize how mean looking this case was until I unboxed it! It looks ready for battle! The cable management through the back of the mounting plate makes hiding cables and keeping them organized very easy. My set up has never looked cleaner. There are plenty of options for mounting drives (I removed the top HDD cage for added room/airflow). Comes with two 120mm case fans installed in a front-in/back-out configuration.

    Cons: The two 120mm fans it comes with are not quite adequate for a more powerful computer (8-core, 16GB RAM, etc...). Get more fans, there is plenty of room for them.

    Did you find this review helpful? Yes No

    • Everett L.
    • Verified Owner

    5 out of 5 eggs

    Pros: Love this midi case. I installed a 1000 watt power supply and had plenty of room for the mother board with NO crowding at all. I installed an extra six inch fan on the door which has a mounting area for a fan. Not that the case needs it. It comes with two six inch fans.

    Cons: None.

    Did you find this review helpful? Yes No

    • Nicholas S.
    • Verified Owner

    4 out of 5 eggs

    Pros: Super spacious, keeps everything EXTREMELY cool. Less than 70C under the biggest loads.

    Cons: Latches that latch the graphics cards in (uses these instead of screws for ease) simply don't fit massive cards. not a huge problem though as the card still stays in. Very heavy as well.

    Bottom Line: Can't go wrong with it.

    Did you find this review helpful? Yes No

    • Anonymous
    • Verified Owner

    5 out of 5 eggs You HAF to get this case!

    Pros: First off, this bad boy looks like Bruce Wayne invented this case! It fit with the Cooler Master Hyper 212 Evo just nicely, but I do recommend to measure and check the measurement of your peripherals before slamming this case into a random build.

    Cons: -No Pop-Tarts.
    -No 3.0 USB..
    -No Batarangs...

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

    • Anonymous
    • Verified Owner

    5 out of 5 eggs You HAF to get this case!

    Pros: First off, this bad boy looks like Bruce Wayne invented this case! It fit with the Cooler Master Hyper 212 Evo just nicely, but I do recommend to measure and check the measurement of your peripherals before slamming this case into a random build.

    Cons: -No Pop-Tarts.
    -No 3.0 USB..
    -No Batarangs...

    Did you find this review helpful? Yes No