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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 1622 Reviews

    See all reviews

    • Filter Results
    • (1444)
    • (1)
    • (56)
    • (1)
    • Steve M.
    • Verified Owner

    5 out of 5 eggs Been a Great Case

    Pros: You name it, This case has been the best .. I Purchased this case in Dec 2011 and its been great. I upgraded everything inside it 2-3 times since then.But the Case has stayed the same, other than removing one hard drive cage to hold my HIS 280x video card..

    Cons: Nothing really..Just need to replace the fans once in a while, they do wear out..

    Did you find this review helpful? Yes No

    • Jeremy M.
    • Verified Owner

    5 out of 5 eggs Great Everything!

    Pros: This is a very large and high quality case great for custom PC builds. Great quality and a REMARKABLE price.

    Cons: The "feet could have been made with a better material.

    Did you find this review helpful? Yes No

    • Joshua R.
    • Verified Owner

    5 out of 5 eggs Great Product, Excellent Price Point

    Pros: Quality, quality quality. finish and fitment of all accessories and mb are flawless. Fans are not as loud as people are saying, I can barely hear them @ 100% pwm.

    Cons: Not much of a con but to complete the case fan setup you will need 2 - 120mm fans and 1 240 mm fan.

    Bottom Line: I would buy this again in a heart beat.

    Did you find this review helpful? Yes No

    • Anonymous
    • Verified Owner

    5 out of 5 eggs awsome

    Pros: everything

    Cons: nothing

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

    • Mia P.
    • Verified Owner

    4 out of 5 eggs usb front slots do not fit

    Pros: In general, I like the case very much.
    Unfortunately, the front usb ports do not fit any usb devices that I own. That really is a drag.

    Cons: Front usb ports do not fit standard usb 2 devices.

    Bottom Line: none

    Did you find this review helpful? Yes No

    • Daniel W.
    • Verified Owner

    5 out of 5 eggs Great case!

    Pros: Tons of room, two working fans, tons of room, tons of room, great price.

    Cons: none

    Did you find this review helpful? Yes No

    • Henry I.
    • Verified Owner

    4 out of 5 eggs great build but include fans please.

    Pros: Amazing product for price range. Well built. Plenty of space for any personal use i can think of and plenty of room for airflow.

    Cons: Only comes with 2 x 120mm fans (one on front and one on back). If not for the lack of fans included, I would give it 5 eggs.

    Bottom Line: To take full advantage of the tower's potential airflow be prepared to purchase an additional 2 x 120mm fans and 1 x 200mm fans.

    2 out of 2 people found this review helpful. Did you? Yes No

    • Mark A.
    • Verified Owner

    4 out of 5 eggs Make room.

    Pros: Big. Breathes well. Fan compliment. Ports for liquid cooling, if you're into that. Front panel ports are horizontal, so not as prone to collect dust as angled or vertical ones. Has a bottom mount for the PSU with a downvent. Looks like there is a filter there, but I will approach that when I dust it out.. Both sides come off and go back on easily. Good buy at $60 or less.

    Cons: Cosmetics on the front panel resemble padding, but they're purely for looks, which may or may not appeal to you. I'm indifferent. Those hyper-sensitive to noise wont like this. As far as I can tell, It's not insulated for sound. Using all the fan mounts would probably make it pretty noisy, but more an ambient hum than, say, running a vacuum. I use headphones, so I anticipate minimal issues with noise.

    Bottom Line: Plenty of room in there for a two-fan video card, but doubtful for the longer three-fan units.

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

    • Cory H.
    • Verified Owner

    5 out of 5 eggs No complaints

    Pros: Great airflow
    Stock fans are more than adequate and it is easy to install fans on the 2 openings
    Big enough to fit my huge Radeon 7950 GPU easily
    Big enough to do minor work inside without having to remove the mobo

    Cons: None

    Did you find this review helpful? Yes No

    • Barbara G.
    • Verified Owner

    4 out of 5 eggs Great Case!

    Pros: A lot of room for neat cable management, comes with a couple fans, very cheap if you can get it on sale!

    Cons: Few sharp edges, the inside is not painted.

    Bottom Line: A nice case if you don't wanna spend a lot of money with some good features. Pretty good for modding as well.

    Did you find this review helpful? Yes No