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Cooler Master HAF X - Full Tower Computer Case with USB 3.0 Ports and Windowed Side Panel (RC-942-KKN1)

4.6 out of 5 stars 2,207 customer reviews
| 769 answered questions

Price: $179.92 & FREE Shipping. Details
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Full Tower
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  • SATA dock for easy installation without the need of removing side panel
  • Internal USB 3.0 on front I/O panel
  • Air duct to cool the latest graphics cards
  • Up to one 230 mm fan and three 200mm fans
  • 9 expansion slots support 3-way and 4-way SLI and Quad CrossFireX.
  • GPU air duct with fan for SLI or Crossfire cooling
  • Power supply partition to conceal cables
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58 new from $137.46 1 used from $142.09 1 refurbished from $462.12

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Frequently Bought Together

  • Cooler Master HAF X - Full Tower Computer Case with USB 3.0 Ports and Windowed Side Panel (RC-942-KKN1)
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  • Intel Boxed Core I7-6700K 4.00 GHz 8M Processor Cache 4 LGA 1151 BX80662I76700K
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  • Arctic Silver 5 AS5-3.5G Thermal Paste
Total price: $533.36
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This item: Cooler Master HAF X - Full Tower Computer Case with USB 3.0 Ports and Windowed Side Panel (RC-942-KKN1)
Customer Rating 4 out of 5 stars (2206) 4 out of 5 stars (18) 4 out of 5 stars (114) 4 out of 5 stars (169)
Price $179.92 $586.80 $204.18 $344.99
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Amazon.com Amazon.com Olivabel Amazon.com
Dimensions 25 inches x 25.5 inches x 11.5 inches 30 inches x 30 inches x 13 inches 23.2 inches x 21.7 inches x 9.1 inches 27.2 inches x 25.6 inches x 9.9 inches
Item Weight 31.5 pounds 50 pounds 31.6 pounds 41 pounds
Material 0 aluminum Steel Aluminum and Steel
Supported Motherboard ATX Information not provided XL-ATX XL-ATX
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Product Description

Size: Full Tower | Color: HAF X

The much anticipated HAF X arrives as the flagship of the popular HAF (High Air Flow) series. Designed for performance systems, this chassis is able to house today's latest and hottest CPUs, motherboards, graphics cards, and is compatible with USB 3.0 devices. With specialized support and cooling for graphics cards, massive airflow with the help of up to four gigantic fans and easy access to installed components, this is as close as it gets to a system builder's 'dream case'.

Product Information

Size:Full Tower  |  Color:HAF X

Technical Details

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Summary : Screen Size, Screen Resolution, Graphics Coprocessor, Graphics Card RAM
Number of USB 2.0 Ports 2
Number of USB 3.0 Ports 2
Brand Name Cooler Master
Item model number RC-942-KKN1
Hardware Platform Pc
Operating System Windows
Item Weight 31.5 pounds
Product Dimensions 25.5 x 11.5 x 25 inches
Item Dimensions L x W x H 25.5 x 11.5 x 25 inches
Color HAF X
Computer Memory Type DDR3 SDRAM
Audio-out Ports (#) 1

Additional Information

Customer Reviews
4.6 out of 5 stars 2,206 customer reviews

4.6 out of 5 stars
Best Sellers Rank #145 in Electronics > Computers & Accessories > Computer Components > Computer Cases
Shipping Weight 36 pounds (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available April 2, 2004

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.


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From the Manufacturer

Dimensions 9.1 x 18.9 x 19.5 in 9.1 x 23.6 x 21.7 in
Motherboard Micro-ATX / ATX Micro-ATX, ATX, E-ATX, GIGABYTE XL-ATX
5.25" Device Bays 4 Exposed (one could be converted to 3.5” bay) 6 (2 from X-Dock)
3.5" Device Bays 1 Exposed ( converted from 5.25” bay) / 6 Hidden 5 (hidden) (supports 2-in-1 2.5" and 1.8" SSD)
2.5" Device Bays 4 Hidden (two converted from 3.5” bay) 2 (from 5.25” drive bays)
Front I/O Panel USB 3.0 x 1 & 2.0 x1, Audio x 1, Mic x 1 USB 3.0 x 2 (internal),USB 2.0 x 2, IEEE 1394a x 1, e-SATA x 1, Audio x 1, Mic x 1
Expansion Slots 7+1 9
Fan Cooling Mount 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) Front:230x30 mm red LED fan x 1 Top:200x30mm fan x 2 (one is optional) Side:200x30mm fan x 1 Rear:140x25mm fan x 1 VGA card fan duct:120x25 mm or 120x38mm fan x 1 (optional) VGA card holder:80x15mm fan x 1 (optional)
Radiator Support Rear: 120mm x1 Top: 360 / 240mm x1 Rear: 140 / 120mm x1
Included Cooling Device Front: 120mm x1 Rear: 120mm x1 Front: 230mmx1 Top: 230mm x1 Rear: 140mm x1 Side: 230mm x1

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Size: Mid TowerColor: HAF 912 Verified Purchase
When choosing a case it is important to make sure it is something that you like and that will fit your needs. Cases are one of the few, if not the only component from a PC rig that will last you through multiple builds. With that in mind, I took a long time researching and browsing around before I decided on a case for my computer build.

The HAF 912 was consistently mentioned across the web by PC enthusiasts and amateurs as a strong case choice for both form and function. Cooler Master named the HAF series to stand for "High Air Flow" and these cases truly shine in that area. I am running an AMD 955 black edition processor overclocked to 4.0gHz and also a Radeon 6950 1gb video card and the case stays between 27-40 degrees celsius on the stock fans (depending on if I am just browsing the web or utilizing more CPU power). I thought I would need to purchase a bunch of extra case fans in order to keep my system temperatures down, but such is not the case. The huge vent in the top of the case can accommodate up to a 200mm case fan, but for now it works very well as just an exhaust vent. Most of the hot air exits through this area.

The 912 also takes a minimalist approach in terms of design and does not include a giant window or bright LED lights like some other cases boast. For myself this was perfectly fine, but if you are looking for a case that has all of these extra features then this is not the right choice for you. I didn't need a flashy case and instead I wanted my money to be spent on build quality and necessary features. Here are some of the key reasons I would recommend this case to a prospective builder:

Airflow- Superb, even with only the stock fans (discussed above).

Capacity/Size- There is plenty of room inside this case.
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Size: Lan BoxColor: Elite 120A Verified Purchase
Guiderails are supereasy to add 3.5" harddrive.
No sharp edges.

If you have not build small form factor PC before, make sure that watch youtube videos. You want to add the components in certain order.

For me
- remove the front panel
- remove the cover plate
- remove the bracket for PSU

- mount the DVD Burner first.
- put the front panel back
- mount the 3.5" hard drive

- layout out the cables from the front panel
- mount the CPU onto the motherboard (without the heat sink)
- connect all the power swtich, hard drive, speakers cables from the front panel to the mother board (anything that is hard to read or connect)
- connect one of the fan as system fan onto motherboard
- mount the mother board
- add the memory
- connect the remaining cables, like USB 3.0 and USB 2.0
- connect the internal SATA cables to your drives
- connect the fan from the heat sink onto mother board
- mount the heat sink
- mount the PSU onto the bracket
- partially slide in the PSU unit, connect the power cables to mother board, drives, and fan etc.
- complete slide in the PSU unit into the case (slowly), you don't want to knock out any cables that are already connected
- mount the drive
- tidy up all the cables, make sure they are not blocking/touch any of the fans, in particular the one from the heat sink.
- close the case
- plug it in and power it up

enjoy your new machine

Components used
GA Z77N-Wifi w/ i5-3570
2 TB Samsung harddrive
ASUS DVDRom buner
8 x 2 GB DDR3 RAM
Cooler Master eXtreme Power Plus 500w Power Supply (RS500-PCARD3-US)

- Wish it came with extra fans and better air filter, other than that I am very happy with the case.
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Size: Lan BoxColor: Elite 130
As a previous owner of the Cooler Master Elite 120 and a Fractal Design Node 304, I'm really fond of the mini-ITX form factor. In particular, I'm a big fan of cases that allow you to reduce the footprint of a computer while also permitting the use of high-end hardware and good cable management. The Elite 120 was great for this purpose, with the only problem being that its stylish brushed aluminum front limited the amount of air that could be moved by the included 120 mm fan. The new Elite 130 by Cooler Master fixes every problem from the previous iteration while somehow slightly reducing the case's size and adding in a few more features that computer builders will appreciate.


Upon opening the case, it's impossible not to notice that a lot of thought went into improving things that people didn't like about the Elite 120. The most noticeable change is the inclusion of a sleek black mesh front. The front has seen a redesign with the 2:1 USB 2.0 to 3.0 ratio inverted; the front of the case now sports two USB 3.0 ports. Also new on the front of the case is a much sturdier and more stylish looking power and reset button combination. For those with precise vision, it's also worth noting that several centimeters have been shaved off of the dimensions of the case, though it's worth noting that the slightly-jutting bracket that allows for a full-size ATX PSU remains.

Inside the case, as in the previous version, Cooler Master has done a good job making it easy to get to all of the cables that will find their way onto your motherboard headers. Also bundled is a zip-lock bag with the standard fare that you'd expect for a computer case: motherboard standoffs, zip-ties, and screws.
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13 Comments 71 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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