Skip to: | - A great place to buy computers, computer parts, electronics, software, accessories, and DVDs online. With great prices, fast shipping, and top-rated customer service - once you know, you Newegg.

If you are reading this message, Please click this link to reload this page.(Do not use your browser's "Refresh" button). Please email us if you're running the latest version of your browser and you still see this message. - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

Sign up today for a 30-day free trial of Newegg Premier
  • Shipping Destination: United States
  • Wish List
  • Feedback
  • Help
Search all
Home > 
Computer Hardware > 
Computer Cases > 
Computer Cases > 
Cooler Master > 
Item#: N82E16811119225

Cooler Master HAF X - High Air Flow Full Tower Computer Case with Windowed Side Panel and USB 3.0 Ports

  • Black
  • Steel / Plastic
  • USB 3.0 x 2 ,USB 2.0 x 2, Audio x 1, Mic x 1, e-SATA x 1, 1394a x 1 Front Ports
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
  • Pin It
  • Email this page
ICON Loading...


Cooler Master HAF X Full Tower Chassis

The case that is held up as the benchmark for full towers, HAF X has remained the flagship of the highly popular High Air Flow Series (HAF). Its rugged militaristic design offers a tough casing that provides outstanding protection while providing an unprecedented ease of use when it comes to building and managing a complex and powerful system. This extends to support for the latest graphics cards and components.

The HAF X can handle up to four full length graphics cards.
Using micromesh filters located in the front bezel, top exhausts, side panel, and bottom floor, the HAF X is resistant to dust buildup.
A high airflow design strives to eliminate overheating with Large 200 and 230mm fans that spin at lower RPMs to ensure high Airflow without high noise.
There are two X-Dock bays at the front that are compatible with up to two 3.5” or 2.5” drives.
Two front ports are USB 3.0 and compatible with SuperSpeed USB. The HAF X ports are backwards compatible with USB 2.0.

Technical Specs:

Available Color Black
Materials: Case body: Steel
Front and Top Mesh: Plastic
Dimensions (W/H/D) 9.1(W) x 21.7(H) x 23.2(D) inch
Weight 31.6 lbs
M/B Type Micro-ATX, ATX, E-ATX, XL-ATX
5.25" Drive Bay 6
3.5" Drive Bay 5 hidden
2.5"/3.5" Drive Bay 2 (converted from 5.25" drive bay)
I/O Panel USB 3.0 x 2 (Internal)
USB 2.0 x 2
Audio x 1
Mic x 1
e-SATA x 1
1394a x 1
Expansion Slots 9
Cooling System Front: 230 x 30mm red LED fan, 700RPM, 19dBA / 110CFM
Top: 200mm x 30mm fan x 2, 700RPM, 19dBA, 110CFM (one optional)
Rear: 140 x 25mm Fan x 1, 1000RPM, 19dBA, 61CFM
VGA Fan Duct: 120 x 25mm or 120 x 38mm fan x 1 (optional)
VGA Holder: 80 x 15mm fan x 1 (optional)
Power Supply Bottom mounted / ATX PS2
Water Cooling Compatibility Top: 360mm Radiator (3 x 120mm fan)


  • newegg SATA Dock The Cooler Master RC-942-KKN1 features SATA dock to provide easy installation without removing side panel.
  • newegg USB 3.0 on Front I/O Panel The convenient front I/O panel enables easy access to two USB 3.0 ports, two USB 2.0 ports, one eSATA port, one IEEE 1394 port and two audio ports.
  • newegg Supreme Expandability Boasting six 5.25" external drive bays, and five 3.5” drive bays, the Cooler Master RC-942-KKN1 case provides great expandability for future upgrade. And the nine expansion slot supports 3-way and 4-way SLI, and Quad CrossFireX, perfect for hard-core game enthusiast.
  • newegg Peerless Cooling Performance The Cooler Master RC-942-KKN1 case features one 230mm front red LED on/off fan, one 140mm rear fan, one 200mm top and one 200mm side fan, as well as the air duct for exceptional cooling performance.
  • newegg Transparent Side Panel Window The Cooler Master RC-942-KKN1 case features a transparent side panel window to provide a direct view of the inner system. The red LEDs add stylishness and eye-catching fun.
  • newegg Cable Management The Cooler Master RC-942-KKN1 features a cable management system with rubber grommets for better, easier cable routing and neatness. Not only will your case look neat, but air will have no problem getting to the common hot spots.

Learn more about the Cooler Master RC-942-KKN1


HAF series


ATX Full Tower
Case Material
Steel / Plastic
With Power Supply
Power Supply Mounted
Motherboard Compatibility
Micro ATX / ATX / Extended ATX / XL-ATX
With Side Panel Window


External 5.25" Drive Bays
External 3.5" Drive Bays
Internal 3.5" Drive Bays
External 2.5" Drive Bays
2 (converted from 5.25" drive bay)
Expansion Slots

Front Ports

Front Ports
USB 3.0 x 2, USB 2.0 x 2, Audio x 1, Mic x 1, e-SATA x 1, 1394a x 1

Cooling System

140mm Fans
1 x 140mm rear fan
200mm Fans
1 x 200mm top fan
1 x 200mm side fan
230mm Fans
1 x 230mm front red LED on/ off fan
Side Air duct

Physical Spec

23.20" x 9.10" x 21.70"
31.6 lbs.


SATA Dock for easy installation without the need of removing side panel.

USB 3.0 on front I/O panel.

Air duct to cool the latest graphic cards.

9 slots support 3-way and 4-way SLI, and Quad CrossfireX.

Adjustable VGA card holder to support heavier GPU cards.

Power supply partition to conceal cables.

Advanced cable management with rubber grommets.

Spacious interior for larger component parts.

Rugged black coated interior.

GPU air duct with fan for SLI cooling (a 150cfm fan is recommended to be installed by nVidia for cooling GTX 480 SLI ).

Cooling System:
-Front: 230 x 30 mm red LED on/off fan x 1
-Top: 200 x 30 mm fan x 2 (one optional)
-Side: 200 x 30 mm fan x 1
-Rear: 140 x 25 mm fan x 1
-VGA Fan Duct: 120 x 25 mm or 120 x 38 mm fan x 1 (optional)
-VGA Holder: 80 x 15 mm fan x 1 (optional)

Manufacturer Warranty

2 year limited
2 year limited

Quick Info


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

Customer Reviews of the Cooler Master RC-942-KKN1

Do you own this product? Write a Review

ICON Loading...

Filter Results

  • Max M.
  • 8/19/2014 6:03:14 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsA Fine Purchase

Pros: This case has been treating me just fine. There is plenty of clearance for a number of items. Particularly, I installed the Noctua NH-D15 CPU cooler with enough clearance. A big case for a big build.

Cons: Not a con to me, but something to consider: This is a large case. Consider actually breaking out a tape measure to bring some tangibility to the measurements of how big this case actually is.

Other Thoughts: I would invest in the extra fans for this case. A few extra bucks could definitely help to cool the contents you wish to fill the case with.

Did you find this review helpful? Yes No

  • Ian B.
  • 8/18/2014 2:28:43 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggslove it

Pros: room for pretty much everything
IT COMES WITH CASTORS!!! (never realized how awesome this is before)
great air flow
side window
does everything i wanted it to and much more

Cons: the bottom external sata drive tray is slightly misaligned so i cant install anything in that slot. however there are plenty of others to use, minus one egg.

Other Thoughts: when plugged into the mobo the door fan makes it interesting to remove the side of the case. this is more than made up for by the air flow provided.

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

  • Kyle W.
  • 8/4/2014 5:15:45 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsgood buy

Pros: reliable, Tough, heavy duty

Cons: doesn't fit on my desk like my other towers

Other Thoughts: looked like a forklift ran into it, but got that all sorted out,

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

  • Michael P.
  • 8/4/2014 4:43:00 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsFantastic

Pros: Nice, Large case that will fit the longest video cards and tallest heat sinks, 4 USB ports (2 2.0, 2 3.0) as well as e-SATA & Fire-wire if you are into that. Plenty of fans too

Cons: None so far

Other Thoughts: The case is very large and heavy, so make sure you have the room for it before you buy it

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

  • George S.
  • 8/3/2014 12:08:57 PM
  • Tech Level: High
  • Ownership: more than 1 year

4 out of 5 eggsgreat case but...

Pros: Plenty of room to move around in and easy to set up. Tons of air flow and many positions to place fans. Liquid cooling this case is easy.

Cons: The only downside I have noticed on this case is that if you are installing a liquid CPU cooler such as Corsairs H100 or H100i you will have to install the backing plate on the motherboard before the motherboard is placed into the case. The backside cutout for the backing plate is not large enough to install the bracket. Not sure what coolermaster was thinking but they dropped the ball on this one item.

Other Thoughts: All in all it is a great case. I would prefer this case over all else even though they slipped up on the back cutout. Very easy case to work around and looks great. If it had a larger cutout I would have given it five eggs.

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

  • Austin V.
  • 8/2/2014 6:59:00 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsGreat Case for showing off

Pros: This thing is big, spacious, gorgeous, and has plenty of airflow. Phenomenal case when your going all out.

Cons: Broke the front USB port in may (my fault not a case defect) and have yet to receive the replacement piece, cooler master says its on back-order but its going on 3 months now!

Other Thoughts: Would definitely recommend, just don't damage anything!

2 out of 3 people found this review helpful. Did you? Yes No

  • Zhengwen C.
  • 7/31/2014 8:41:57 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggs

Pros: Lots of space, Easy to put things in. Wheels are very good design.

Cons: not so far

Did you find this review helpful? Yes No

  • Casey C.
  • 7/28/2014 6:54:21 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsVery Nice Case

Pros: Lots of room and attention to detail throughout.
Huge Fans are super quiet
Easily run wires and hide them from sight

Cons: Instruction Book was terrible
Came Damaged to me.

Did you find this review helpful? Yes No

  • Martin P.
  • 7/11/2014 1:21:33 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year

4 out of 5 eggsAmazing Case

Pros: Ok, so I've owned this case which has got to be pushing around 3-years, I have changed the fans to more enthusiast friendly after the 3rd year (original still worked fine and quietly) kept it clean from dust and built an AMD/Radeon build and am now running Intel/Nvidia. An amazingly durable machine I have moved it to Lan parties and carried it from City to city as I moved alot, it has stood the test of time and still comes back, although I am now looking to go mid-size/bench I will still hold onto this machine for future ideas. Oh, and fits dual gpu's and a big Noctua Dh-14 easily, cable management was easy to hide as well!
-Fits almost anything
-Very nice cooling system
-Many storage slots and easy to use
-looks awesome

Cons: -Heavy? C'mon toughen up!
-Large fans have a tendency to be noisy although I haven't had such issue myself.
-front usb panel gave me an issue, contacting CoolerMaster however resolved the issue, Great company.

Other Thoughts: Coolermaster have made an amazing tower, I'm glad I purchased it and its kept my setup running cool and strong for years! Oh and people compliment its size (^_~)

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

  • Ho Y.
  • 7/10/2014 6:06:58 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsIt's pretty cool, but lack of LEDs.

Pros: -Air flow

-Very easy to assemble.

-Nice material/finishing.

-General design. Looks pretty cool.

-Lots of optional accessories that came with the case.

Cons: -No fancy LED lights. The only LED is from the front mounted fan.

-All of the optional accessories do not fit in.

-Side fan was having contact with the metal dust net on the side panel, they were making noises. I have to loosen all the fan screws in order to make some space between them.

Other Thoughts: I thought it came with two upper fans. But after carefully read the spec, one is actually optional... So I guess next time I would read more carefully.

The case is so tall with the wheels underneath, and it is pretty tall without the wheels. I had some trouble sliding the case under my desk.

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

Compare Offers from All Sellers

Seller Name & Rating Offer Details  
ICON Loading...

More Buying Options

Are you an E-Blast Insider? Subscribe Newegg e-Blast
Shop without retyping payment details. Secure shopping made faster.
Check out with PayPal.

Home > 
Computer Hardware > 
Computer Cases > 
Computer Cases > 
Cooler Master > 
Item#: N82E16811119225
Shop by Region: United States | Canada | China
VeriSign Click for the BBB Business Review of this Computers - Supplies & Parts in Whittier CAThis site protected by Trustwave's Trusted Commerce program Inc500
Policy & Agreement | Privacy Policy  © 2000-2014 Newegg Inc.  All rights reserved.
If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site. nassau