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"Just received the case I ordered, Cooler Master ATCS840. Arrived in excelent condition, looks wonderful, goi..."
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Cooler Master HAF X EATX Tower Case Black 6X5.25 5X3.5INT No PS Front USB3.0

Cooler Master HAF X EATX Tower Case Black 6X5.25 5X3.5INT No PS Front USB3.0 - 1
Actual product may not be exactly as shown.
Cooler Master HAF X EATX Tower Case Black 6X5.25 5X3.5INT No PS Front USB3.0 - 53776_l.jpg Cooler Master HAF X EATX Tower Case Black 6X5.25 5X3.5INT No PS Front USB3.0 - 53776_1.jpg Cooler Master HAF X EATX Tower Case Black 6X5.25 5X3.5INT No PS Front USB3.0 - 53776_2.jpg Cooler Master HAF X EATX Tower Case Black 6X5.25 5X3.5INT No PS Front USB3.0 - 53776_3.jpg Cooler Master HAF X EATX Tower Case Black 6X5.25 5X3.5INT No PS Front USB3.0 - 53776_4.jpg Cooler Master HAF X EATX Tower Case Black 6X5.25 5X3.5INT No PS Front USB3.0 - 53776_5.jpg Cooler Master HAF X EATX Tower Case Black 6X5.25 5X3.5INT No PS Front USB3.0 - 53776_6.jpg Cooler Master HAF X EATX Tower Case Black 6X5.25 5X3.5INT No PS Front USB3.0 - 53776_7.jpg Cooler Master HAF X EATX Tower Case Black 6X5.25 5X3.5INT No PS Front USB3.0 - 53776_8.jpg Cooler Master HAF X EATX Tower Case Black 6X5.25 5X3.5INT No PS Front USB3.0 - 53776_9.jpg Customer Photos (0)
Our Price: $219.99  CAD

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SKU: 53776
Shipping Weight: 36lbs

Part #: RC-942-KKN1

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Product Videos [ Edit ]

Features [ Edit | History ]


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 even compatible with USB 3.0 devices. With specialized support and cooling for graphic cards, massive airflow with the help of up to four gigantic fans and easy access to installed components, this as close as it gets to a system builder's 'dream case'.

Quick Specs:
Motherboard Supported µATX ATX EATX
Limited Warranty 1 Year
Weight (Approximate) 31.60 lb
Color Black
Form Factor Full-tower
Height 21.7"
Width 9.1"
Depth 23.2"
Number of Fans Supported 7
Number of Fans Installed 3
Number of External 5.25" Bays 6
Number of Power Supplies Supported 1
Number of Internal 3.5" Bays 5
Number of Total Expansion Bays 11
Number of Total Expansion Slots 9
Total Number of USB Ports 4
Total Number of FireWire Ports 1
Total Number of Audio Out Ports 1

Specifications [ Edit | History ]

     Number of External 5.25" Bays: 6
     Number of Internal 3.5" Bays: 5
     Number of Total Expansion Bays: 11
General Information  
     Brand Name: Cooler Master
     Manufacturer: Cooler Master Co., Ltd
     Manufacturer Part Number: RC-942-KKN1
     Manufacturer Website Address:
     Product Model: RC-942-KKN1
     Product Name: HAF X RC-942-KKN1 Chassis
     Product Type: Computer Case
I/O Expansions  
     Number of Total Expansion Slots: 9
     eSATA: Yes
     Front Audio In: Yes
     Front Audio Out: Yes
     Front FireWire: Yes
     Front USB: Yes
     Total Number of Audio Out Ports: 1
     Total Number of FireWire Ports: 1
     Total Number of USB Ports: 4
Physical Characteristics  
     Color: Black
     Depth: 23.2" (589.3 mm)
     Form Factor: Full-tower
     Height: 21.7" (551.2 mm)
     Weight (Approximate): 14.33 kg
     Width: 9.1" (231.1 mm)
Power Description  
     Number of Power Supplies Supported: 1
Technical Information  
     Motherboard Supported: µATX
     Number of Fans Installed: 3
     Number of Fans Supported: 7
     Limited Warranty: 1 Year

Customer Reviews of COOLERMASTER RC-942-KKN1

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding COOLERMASTER RC-942-KKN1 reviews.
Experience: 5 Years


most solid case out of all the ones ive used
Cons somewhat dated now


still a great gaming tower

Experience: 30 Days

Verified OwnerVerified Owner


Very large case, plenty of room for any thing. Excellent ventilation. Easy install of components, good cable management
Cons Wires on top to USB ports and controls too short. Hard to move top to install new fans. Should be unplugable. Worried about breaking wires when manipulating top.


Very happy with case. Came with all the screws and parts needed. Note....The stand offs are a slightly different thread so don't mix your old ones with these newer ones.

Experience: 2 Months


Beautiful looking
Has a lot of hard drive bays
Cons Mine came with only USB cables that you have to connect to the baçk panel when your Mobo is installed


This case is perfect for any size and I would keep using this if I needed any upgrade on my computer.

Experience: 10 Years

Verified OwnerVerified Owner


I have two of these.
Beautifully built.
Cons Z97 Gaming 5 Mobo Backplate will be a hassle. Not that bad.


I have two of these towers. Can't go wrong.

Experience: 5 Days

Verified OwnerVerified Owner


- Well Built
- Nice Cable management
- Nice big fans
- Hardly any noise
- Tool less bays
- SSD bracket
- All painted black
- LED on and off switch
- Good Cooling
Cons - Could of had cover for SATA hotswap circuit board (like corsair does)
- Firewire (very few people use this should not be on case)


Overall nice case really nice to work with. Has good cable management and not noisy fans due to the size of them.

Experience: 4 Years


Rugged design
Cable management
Hdd trays/management
Dust Filters
Cons Weight


I've mostly built computers in full tower cases, but this case is exceptionally large and just exceptional in general. I mentioned weight in Pros and Cons since I prefer a nice heavy, solid feeling case to put all my expensive components in, but it doesn't make it the easiest to move around or take to a lan party. I love all the cable management in this case, I'm not sure how it stacks up to the newer cases, but it was one of the best when I bought it. It happened to also be one of the few cases that could fit my cpu cooler in it. I believe I have the Noctua NH-D14 if I remember correctly, either way it's massive. Also this case comes pre-stocked with tons of cooling for a normal build, but I purchased and installed the rest of the fans (for the empty slots) as well. I believe the previous HAF case also didn't come with dust filters for the fans, but this one does. Overall, I'm not sure there is much I don't like about this case, mine is 4 years old and I still love it. It's a great looking box.

Experience: 3 Years


Great case. Tons of space and fan capacity. Cable management features are a plus.
Cons Adding the second 200mm on the top can be a pain.


I love this case. Lots of space for pretty much anything you might want to do. It looks great too which is a plus because, hey, if you're spending a lot of money on a computer, it might as well look awesome.

The only downside to it (other than it's bulk, but that's the price of having elbow room) that I've found is adding the second 200mm fan on the top that it has space for. You have to pop the top off (which is really not hard once you figure out what you are doing. Just don't make the same stupid mistake I did - there are six clips, not four ;)). The only issue with this is you need to carefully route the front USB and switch cables around the fan, and it's a little tight. If you snap the top back on too quickly, you could easily break the connectors.

Minor annoyance, really. It's a 5/5 product to me.

Experience: 2 Weeks

Verified OwnerVerified Owner


Lots of space
Lots of fans
Great cable management
Cons Some of the screws that came with mine were too small for the proper holes but it came with extras.


This is a great case. It keeps things cool, it's quiet, and it has a ton a space.

Chanserey Vuth_I
Experience: 2 Weeks

Verified OwnerVerified Owner


* Looks great
* Great cable management
* Trays for HDD
* Sturdy (but Feels a bit cheap in the front)
* Silent
Cons none


the case is great! There's even a button to tun on/off the LED.
Bought it with these:
CPU: Intel Core I7 4770K
CPU cooler: Cooler Master Hyper 212 Plus
Mobo: Asus Sabertooth Z87
Ram: Corsair Vengeance CML16GX3M4A1866C9B
GPU: EVGA GTX 770 Superclocked w/ ACX Cooler
SSD: Samsung 840 EVOSeroes MZ-7TE250BW
HDD: WD Green 2TB
OS: Microsoft Windows 8.1 64bit
Optical drive: Asus DW-24F1ST
PSU: Corsair AX860
it is working great.

Experience: 5 Months


SIZE,Loads of HDD Trays, decent Cable management
Cons Cheap LED, for its price (Fan slots not all loaded)GPU Bracket only supports Ref. design, Cant Front mount an H100 due to HDD tray being in the way


Fits everything i need, some things feel cheap others feel ok, good cable management space,Fans do not come loaded (you get a front 200mm,1 200mm top, and rear 140mm fan) Would it of killed Cooler Master to put one more 200mm fan in .. LED on the front 100mm burned out a week after owning the system. Would of also liked to be able to mount my H100 in the front but HDD Cage gets in the way shame..
Not to mention there Fans are Really Cheap and Hardly move Air.
Overall Solid Case for my build.. Would buy it again but.. would most likely go to there Higher end cosmo if i had the Cash so it gets a 3 star More cons then pro's like the case. but at near 200 mark expected a bit more

NCIX Forum Messages

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Please note that Forums is not a sales or product support board. For sales or specific product related questions, please send message to receive the fastest response.

Messages about Cooler Master HAF X EATX Tower Case Black 6X5.25 5X3.5INT No PS Front USB3.0

eSata Port (Alfred HW_K- Aug 16, 13, 3 Replies) Read this message
HAF X dust filters question (Trevor_B- Jul 07, 13, 11 Replies) Read this message
CPU cutout 2 small ? (nd4speed- Jul 05, 13, 9 Replies) Read this message
This Case and H100 in push/pull ? (Silentblue- Jul 05, 13, 1 Replies) Read this message
expansion slots not lining up? (Kerry_B- Jun 02, 13, 3 Replies) Read this message
Side panel (Sabotage- Jun 28, 12, 2 Replies) Read this message
Can someone measure the exact width for me? (Bart_G- Jun 24, 12, 6 Replies) Read this message
Front I/O, missing USB 3 to 2.0 connectors (Mike_Rogers- Jan 30, 12, 8 Replies) Read this message
Front Fan LED Button not working (Andrew_C- Sep 14, 11, 1 Replies) Read this message
Spruced up my hafx (Raftus- Jul 26, 11, 2 Replies) Read this message
HAF-X No USB 3.0 Headers? (PikKirby- Jul 15, 11, 4 Replies) Read this message
PSU? (Jason_d- May 25, 11, 5 Replies) Read this message
Top monted radiator (SGAsgard- Mar 25, 11, 1 Replies) Read this message

Post a New Message  |    All Messages       Browse NCIX Forums

Forum messages are not reviewed and may not contain accurate information about a product. Message contents are opinions from customers based on their own experience with a product. We do not recommend you make puchasing decisions based on Forum messages.

Reviews from the Web

Below are reviews found on other web sites for this product submitted by customers.

Comment: Full review of the case!
Posted by: William_L @04/21/13
Comment: What to expect of the haf x and a comparison of the Haf x to the Haf 932
Posted by: Gurvir_D @01/07/12
Comment: The HAF-X, as the new flagship of the line, raises the bar on what a full tower enthusiast case should be.
Posted by: BernardP @02/22/11
Comment: This case has good air cooling, and the ability to grow into water cooling if desired. It also has a tool-less design for easier upgrades.
Posted by: BernardP @01/31/11
Comment: Cooler Master made a big splash with the introduction of the original HAF chassis, and they have continued to develop and refine the design, resulting in the HAF X that we've seen today. Sporting a similar military/industrial look, the HAF X adds some convenience features and improved cooling, p
Posted by: Andrew_S @12/28/10
Comment: The HAF-X is an excellent case which has the right balance of construction, features and pricing. Itt will tempt even budgeters to go for a top-end system.
Posted by: BernardP @11/29/10
Comment: USB 3.0 ports on the front, aggressive styling and quiet. However, fans are a bit of a compromise as they tend to spill air all over the place instead of placing it where it needs to be.
Posted by: FirewireX @07/23/10
Comment: Incredible features, a great design, very easy to use, proper cooling and sure you can camp in the thing as it is so spacious. The HAF-X is once again a top notch addition to the HAF series PC cases, we're going to grant  it our best top pick award.
Posted by: Lord Babaghan @06/29/10
Comment: The new and improved HAF 933. "The HAF-X more than deserves the 'Dam Good' award, and its likely to be the best case in its category that we review all year"
Posted by: Dean_A @06/19/10
Comment: Cooler Master is calling the HAFX the flagship of the HAF series this should tell you that the case is going to be a beast, and will most likely outperform the other models.
Posted by: dnl4ever @06/19/10
Submit a review link   |   Latest 30 reviews

Product Warranty

NCIX provides limited warranty for this product for 30 days after purchase.

Support For USA, Canada, & Mexico 
Cooler Master USA, Inc.
Unit A - 1951 S Parco Ave.
Ontario, CA

Phone: 1-909-673-9880
Fax:  1-909-673-9882 or 9883

Sales Policy

All pricing subject to change. For all prices, products and offers, reserves the right to make adjustments due to changing market conditions, product discontinuation, manufacturer price changes, errors in advertisements and other extenuating circumstances. Promotional offers from are subject to availability and are available only while supplies last. No rain checks will be issued on promotional items and offers.

While uses all reasonable efforts to include accurate and up-to-date information on the Site, makes no warranties or representations as to the Site's accuracy. assumes no liability or responsibility for any errors or omissions in the content on the Site. warrants product(s) to be in good working condition and free from defects in material and workmanship for a period of one (1) year for OEM packages, and for thirty (30) days for RETAIL packages (excluding laptops and notebooks), from the original Invoice date unless otherwise restricted below or by the manufacturer's own warranty policy. Defective returns and warranty service will be replaced, exchanged or repaired at's sole discretion, and based on vendor's policy.

NON-DEFECTIVE merchandise returns may be accepted on some items ONLY within 15 days of the Invoice date, at's discretion. Laptops and Notebooks can be returned within SEVEN (7) days from original invoice date. Return will only be accepted with original packaging, accessories, cables, free gifts (if applicable), unopened software and manuals and is subject to inspection before warranty approval. Laptop and notebook with tampered serial numbers or UPC code will be denied returns.

GOVERNMENT & BUSINESS Laptop and Notebook purchases made with government or business POs can be returned typically within fourteen (14) days from original invoice date. Return will only be accepted with original packaging, accessories, cables, free gifts (if applicable), unopened software and manuals and is subject to inspection before warranty approval. Laptop and notebook with tampered serial numbers or UPC code will be denied returns. Please check with your B2B sales representative for specific terms and details.

All NON-DEFECTIVE returns are subject to a 15% restocking fee. No refunds will be issued for blank media, digital camera (and accessories), opened software, printers, printer supplies, paper, projectors (and accessories), appliances, handhelds, PDAs, notebook computers, special order computers and special order items.

Defective software, video games or DVDs will be replaced by the SAME title and format ONLY (and subject to current availability) within 30 days of the Invoice date. Software, Drones, video games and DVDs may be returned within 30 days only if the item is UNOPENED (with shrink wrap still intact) at the sole discretion of does NOT apply a surcharge to credit card orders. Please read our RMA & warranty policy and terms & conditions for more information. If you have any questions regarding our sales and warranty policies, please send us a message -- we'll be glad to answer any of your questions.

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