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Item#: N82E16811119233

Cooler Master HAF 912 - High Air Flow Mid Tower Computer Case

  • SECC/ ABS Plastic ATX Mid Tower
  • 2 x USB 2.0, 1 x Audio, 1 x Speakers Front Ports
  • 2 x 120 mm fans, 1200 RPM, 17 dBA
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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
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


HAF series


ATX Mid Tower
Case Material
SECC/ ABS Plastic
With Power Supply
Power Supply Mounted
Motherboard Compatibility
Micro ATX / ATX
With Side Panel Window


External 5.25" Drive Bays
External 3.5" Drive Bays
1 (converted from 5.25" bay)
Internal 3.5" Drive Bays
Internal 2.5" Drive Bays
2 + 2 (converted from 5.25" bay)
Expansion Slots
8 (7+1)

Front Ports

Front Ports
2 x USB 2.0, 1 x Audio, 1 x Speakers

Cooling System

120mm Fans
1 x 120 mm front fan, 1200 RPM, 17 dBA
1 x 120 mm rear fan, 1200 RPM, 17 dBA

Physical Spec

19.50" x 9.10" x 18.90"
17.80 lbs.


Front I/O for easy access

Top platform for personal belongings

CPU Retaining hole

Water Cooling outlets

Supports two 120mm radiator fans

Backup screw holder

7+1 slots for increased expandability

Two 3.5" or 2.5" / 1.8" HDD/SSDs

Supports high-end graphics cards like ATI HD 5970 and nVidia GeForce GTX

Removable dust filters on the bottom and front cover

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)

Manufacturer Warranty

2 years limited
2 years limited

Quick Info


  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years

Customer Reviews of the Cooler Master RC-912-KKN1

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  • Anonymous
  • 4/10/2014 10:12:33 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsGood Case - louad

Pros: Case is nice and sturdy.
Good bit of cable management room

Cons: Loud fans - I am going to have to replace them.

Front panel fan's cord is not long enough to reach motherboard, forcing you to plug into power supply so you can't manage it's speed at all.

One of the black pegs that the power supply is suppose to sit on was missing.

Other Thoughts: I bought 2 of these cases for the new computers we were building for the house. I don't regret buying the cases and I think they are real nice cases overall. Just buy while knowing you may end up feeling the need to buy some fans to reduce the noise.

Did you find this review helpful? Yes No

  • Dustin H.
  • 4/7/2014 10:48:12 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsCool Matser HAF-912 Black

Pros: Incredibly HIGH QUALITY case for the price... Impressive actually... I purchased this for a Client as I build systems as part of my own business and I thought it looked little hoaky but the real world look impressed me.

Cons: Maybe the Looks? I dunno it's speculative - there are no real cons not for the price.

Other Thoughts: No Powder Coating on Inside or Back, this model has no USB 3.0 on the case directly. Get the BLUE model if you want USB 3.0 if you want Powder Coating you can get the Pro model

Did you find this review helpful? Yes No

  • Ben D.
  • 3/30/2014 5:20:19 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year

4 out of 5 eggsGreat Budget case

Pros: Looks great
Tons of features
Good Layout

Cons: Inside is not painted
Not a lot of cable managing

Other Thoughts: It's a great case especially for the price. It has a lot of features I couldn't find it other cases for this price point. The only thing that really bothered me was the inside is not painted but it's not that big of a deal.

Did you find this review helpful? Yes No

  • christopher b.
  • 3/30/2014 6:01:53 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsDecent Case

Pros: Very roomy and stylish looking. Dual 200mm fan support. Many extra bays for hard drives and anything else you can imagine.

Cons: Side panel came dented from the factory. I pulled it out of the box and there was a big dent on the side. Big Bummer. Secondly, and this is my fault. The case is unpainted gray metal on the inside. Very Blah. I wished I would have realized this as I would have bought a case that had a black interior.

Other Thoughts: This is my first build in over 7 years and this case is just decent. There are many other cases in this price range that have more std features. Examples: Black interior and usb 3.0 support on front panel

Did you find this review helpful? Yes No

  • herbert m.
  • 3/30/2014 4:18:49 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsYou Did It, Best Tower EVER!

Pros: Strong, durable, lots of space has lots of vents air flow is perfect i am using the 280x R9 graphics card its a very big and long card and it fits in this tower with no problems
all you have to do is remove the hard drive bay and your all set its was very quick and easy to install my board and card.

Cons: nothing bad to say about it, its a great well made tower

Other Thoughts: its a real good tower cool master did a really good job its not cheap it feels strong and it will last a long very long time the price is worth it, really great buy i recommend this tower if your building a monster gaming pc

Did you find this review helpful? Yes No

  • Roger Q.
  • 3/20/2014 7:54:42 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsgood inexpensive case

Pros: I purchased this case recently for a machine I was building for a friend. In the past, I've built a number of computers with this case. I love it! There's plenty of room, it's well constructed and there's plenty of air flow. I really can't point to one thing wrong with this case. Even the warranty service with Cooler Master is above the bar for normal case manufacturers. My work got one from a local vendor and it was damaged. The vendor refused to replace it but Cooler master was happy to resolve the issue.

Cons: none

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

  • Scott Y.
  • 3/19/2014 6:20:10 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week

5 out of 5 eggsGood case

Pros: Plenty of room, and much better air flow than any case I've had in the past. It was easy to transfer my MB, drives, and power supply from the old case to this one. It came with all of the screws I needed, along with the quick install sliding thingies for the hard drives. Packaged pretty well for shipping, too.

Cons: Needs something more than carpet under it for good air flow to the power supply. I ended up putting a piece of wood under the case to ensure that air could move under there.

Other Thoughts: It was a little tight on the side of the case for the SATA cables. I had to make sure I used right angle connectors so there was no pressure on them from the side panel. The case light is not too bright, and the fans are quiet. I also appreciate how the power and reset buttons are near the top front of the case, out of reach of my cat!

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

  • Steven P.
  • 3/19/2014 11:58:01 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsNice Case!

Pros: I love the room in this case.

I like all of the fan slots and breath-ability.

What else would you expect from Cooler Master!

Cons: Some of the power and fan cables are hard to reach and untwist out of the box. It takes small fingers or some time. Beyond that, I don't really have any cons about this case.

Did you find this review helpful? Yes No

  • jason b.
  • 3/18/2014 8:24:02 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsPrice vs quality

Pros: Solid case, Nice design, power supply bottom mounted, lots of room

Cons: Fans are very low quality, Hard drives sit way too close to cover and power cables bend badly.

Other Thoughts: Hard drives sit way too close to side of case and power cables bend badly when the cover goes on it actually causes major bending of cables. Check and make sure you get side mountable power cables and sata cables for this case.
Other then that this is a nice case.

Did you find this review helpful? Yes No

  • Gerard D.
  • 3/17/2014 12:17:59 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsEh

Pros: -Sturdy
-Dust filters on the front and bottom
-2 fans
-Great space, though you should remove the pointless HDD case in the middle and put your SSD case on top of the bottom one. You'll get better air distribution.
-Everything stays nice and cool

Cons: -At $50 I expected more from it. First of all every other case at this price is painted on the interior and just looks better in general, as well as having USB 3.0 on the front
-No usb 3.0
-No filters on the side
-Noisy fans

Other Thoughts: I bought another 140mm fan with a filter for the side and together all the fans make the case very loud, though I don't care too much about that.

Did you find this review helpful? Yes No

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Item#: N82E16811119233
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