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Fractal Design > 
Item#: N82E16811352025

Fractal Design Define R4 with Window Arctic White Silent ATX Mid Tower Case

  • Steel ATX Mid Tower
  • 2 x USB 3.0, 2 x USB 2.0 and Audio I/O front panel ports Front Ports
  • Side Air duct
  • 2 x External 5.25" Drive Bays
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The Define R4 is the latest in the Define series of silent computer cases. Building on the award-winning foundation of the Define R3, the R4 retains minimalistic yet elegant styling with extraordinary performance, noise reduction features, premium build quality and unparalleled value in this price range while adding a suite of innovative new features.

No longer are you forced to choose between silence and support for liquid cooling, the Define R4 offers both. Top fan positions now allow slim 240 radiators to be mounted internally and select slim radiators can also be mounted in the front fan holder. An integrated fan controller is easily accessible behind the front panel, putting fan control at your fingertips. Cable management and intelligent layout are taken to new levels with the option of mounting up to two 2.5in, SSDs on the reverse side of the motherboard tray, effectively mitigating visible cable clutter. When it comes to cable routing, the Define R4 has it covered. Over one full inch of cable routing space behind the motherboard plate has been achieved by widening the case by just 8mm.

This mid-tower case is a great choice for everything from gaming enthusiast systems to silent home theater and corporate applications. The R4 comes pre-fitted with dense noise absorbing bitumen material on the front, top and side panels. The exclusive ModuVent TM System provides three panels which also have noise-absorbing material; these panels can be removed to expose three air vents for additional fans for high air flow applications. Rubber padding on the case feet, anti-vibration pads for the power supply and HDDs also help reduce noise.

Configuration flexibility is enhanced thanks to two hard drive cages (featuring steel drive trays with black silicone mounting grommets) that support a total of eight 3.5in. HDDs or 2.5in. SSDs. The top five-bay cage is easily rotatable and removable; removing the top cage allows support for graphics cards up to 470mm in length. The bottom three-bay cage is mounted to the chassis by screws instead of rivets, allowing you to easily remove both drive cages for complete flexibility. The spacious sleek black interior can support CPU coolers up to 170mm high. If cooling becomes more of a priority, this system can support up to seven fans with removable, washable filters to provide airflow from five sides of the case. The case also includes cable routing cutouts with improved rubber grommets to ensure greater fit and retention. The bottom of the case has a filter over the power supply and 120/140mm intake fan vent which can be easily removed for cleaning.

  • newegg Fully Transparent Side Panel Window The acrylic window side panel features the same clean, Scandinavian design as the case itself, and has a completely flat outer surface without any plastic bezel or rivets, allowing you to display your setup in style.
  • newegg Optimized for Noise Reduction Pre-fitted with dense noise-absorbing material, the R4 also features ModuVent panels which prevent noise from escaping unused fan vents when silence is required. If cooling becomes more of a priority than noise reduction, the ModuVent panels can be removed to expose additional air vents for optional fans.
  • newegg Support for Liquid Cooling You no longer have to make the choice between liquid cooling and silence, the R4 offers both. Top fan positions now allow slim 240mm radiators to be mounted. Select slim radiators can be mounted in the front fan holder (requires the bottom HDD cage to change position).
  • newegg Innovative SSD Mounting Options Hide those drives! Take cable management and interior cleanliness to a whole new level. Mount up to two 2.5in, SSDs out of sight on the back side of the motherboard tray.
  • newegg Integrated Fan Controller Fan control at your fingertips. The integrated fan controller is easily accessible behind the front panel and manages up to three fans, allowing you to tailor the fan speed to your needs.
  • newegg Advanced Cable Management Over 1in. of space behind the motherboard plate means cables can be conveniently routed through five rubber grommets into a generous compartment behind the motherboard to reduce cable clutter and improve airflow.

Learn more about the Fractal Design FD-CA-DEF-R4-WH-W


Fractal Design


ATX Mid Tower
Arctic White
Case Material
With Power Supply
Power Supply Mounted
Motherboard Compatibility
Micro ATX / ATX / ITX
With Side Panel Window


External 5.25" Drive Bays
External 3.5" Drive Bays
Internal 3.5" Drive Bays
Internal 3.5" Drive Bays 8 compatible with SSDs
Internal 2.5" Drive Bays
2 x 2.5" SSD additional mounting positions on back of motherboard tray
Expansion Slots
7 + 1 Fractal accent white painted brackets

Front Ports

Front Ports
2 x USB 3.0, 2 x USB 2.0 and Audio I/O front panel ports

Cooling System

80mm Fans
120mm Fans
140mm Fans
2 x hydraulic bearing 140mm Silent Series R2 fans, 1000 RPM speed
Side Air duct

Physical Spec

27.1 lbs.


Pre-fitted with dense noise absorbing material

ModuVent System offers optimal silence and performance capabilities

2 HDD cages - 5 bay and 3 bay - 3.5" HDD/ 2.5" SSD (8 in total)

Top HDD cage (5 HDD) can be rotated 90 degrees or removed for additional airflow

2 SSDs can be installed on the back of the motherboard plate

A wider case body allows for much improved cable routing capability behind the motherboard, now 26 mm (8mm wider)

Fan controller is integrated in the front panel and supports up to 3 fans

2 Silent Series R2 hydraulic bearing fans with longer life time included

Top fan positions now allow slim 240/280mm radiators to be mounted

Select slim radiators can be mounted in front fan holder (requires the bottom HDD cage to change position)

Tool-less front fan holder makes switching front fans easier

Front fan filter is now easily removed and is washable

The bottom air filter is now extended to cover the bottom fan position as well as the PSU air intake

Bottom HDD cage is fitted with screws instead of rivets and can be easily removed

Rubber grommets are improved to ensure better fit and retention

Thicker steel improves case structural rigidity

Convenient top I/O panel for easy access

Advanced Cable Management System

Supports graphics card lengths up to 290mm with top drive cage installed

Supports graphics card lengths up to 470mm with top drive cage removed

Sleek black interior with Fractal white and black accent colors

7 fan slots: 1 x 140mm and 1 x 120/140mm -front, 1 x 140mm - side panel, 1 x 140mm - rear, 1 x 120/140mm - bottom, 2 x 120/140mm top - positions also support 240/280mm radiators

Quick Info


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

Customer Reviews of the Fractal Design FD-CA-DEF-R4-WH-W

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  • Erik B.
  • 4/4/2014 1:25:50 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsValue for High Quality Case is a Steal!

Pros: It's amazing how much further your dollar goes when you save up for a case like this. After purchasing the Define R4, there is no going back to cheap cases. The Define R4 gives you a clean professional look that strays away from the wonky alien-like designs so many cases have today. The side window variant is a must-have due to the generous cable management area that Fractal Design implemented. Removable center hard drive cages are implemented for large graphics cards, however my Twin Frozr GTX 760 fits without a problem. A vertically designed expansion slot is ready for an auxiliary lighting switch; I use a blue LED light bar that illuminates the entire case and certainly showcases the rig with the large side window. The sound dampening is generous and very effective; I couldn't tell if my system was on if the power LED was off. Even while gaming, I have to try to listen for fans. I could go for days talking about how great of a case this is; I know I am certainly keeping for builds to come.

Cons: Very slight ocassional buzzing when I had a 3.5" hard drive installed in the bottom cage. I have since changed my storage to an SSD so I don't have complaints for drive vibration anymore; might be a fluke/easy fix for my case.

Other Thoughts: I feel this may be that "sweet spot" for computer cases. Just like an old diesel Mercedes-Benz, it's built with clean lines, thoughtful engineering, and tough as a rock. Purchasing this case is a no-brainer.

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  • Chase H.
  • 3/4/2014 6:52:34 AM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsSuch a nice case!

Pros: I got this case out of the box and it looked beautiful! I was so excited to build with this case! All of the screws and standoffs were easily locatable and it was easy to put together. I moved the back fractal fan to the front for a dual intake and instead of screwing it in there, all I had to do was pop the fan in clips and then slide the dust filter back on and it was installed. VERY conveinent space to bulid in.

Cons: Not to much to say bad about this case other than the very minimal cable management space behind the case because of the sound dampening material. Had to squeeze the back panel on to make it fit.

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  • Joseph G.
  • 2/10/2014 7:15:19 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat Case

Pros: Very Quiet, fits all my fans comfortably and allows easy cable management with the slits in the case to run power cables and sata cables through.

Cons: None, researched heavily for cases this one is awesome.

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  • Christian B.
  • 2/5/2014 11:03:08 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsAwesome Case

Pros: Love it, nice design, lots of space, sturdy and good quality paint.

Cons: The door should be hinged the other side but thats a small detail.

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  • Anonymous
  • 1/8/2014 11:47:34 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsVery happy.

Pros: Where do I begin? There are many things to list about this case that make it so great, so bare with me.
Exterior - First off, the look of it. Compared to a lot of other cases out there, it looks kind of plain. That, however, is not a bad thing. If that's what you're looking for in a case that is. The white really looks nice compared to the black full tower that it is replacing. Arctic white is really making a come back in the custom PC world. I've noticed that lately. Arctic white has it's pros all by itself. It doesn't show dust or finger prints as much as a darker colored case. So that's always a plus. The front bezel is nice and shiny, as is the paint job on the entire case. Including the interior. The door feels nice and solid, even for being plastic. It opens easily and the magnets help it close really tight. The side vents on the bezel do a perfect job of directing air to the two front 140mm fans. Nice inputs, buttons, and jacks on the top feel like they are quality built (no wiggling). The side panel window is very easy to scratch, but still doesn't feel too cheap. Also shows my build components and time I put into making it look nice. Overall feel is not too heavy, until you get all of your components inside. The fan controller is a nice addition to top off this wonderful case. Sporting 12-7-5v as high, medium, and low
Interior - Wow is this thing roomy for a mid tower. And if you remove the top drive cage, there is an astonishing amount of room for airflow. The drive cages can be reconfigured in a whole bunch of different ways, or removed entirely. Plenty of spaces for 120/140mm fans. Or even a 240mm radiator if desired (youtube it to see). All together 6 places for fans. The included fans are nice and quiet, but still move a lot of air. 2 fan filters are included and are of good quality. The whole fan housing actually comes out of the front for cleaning if need be. The sound dampening foam works really well at keeping your system running quietly. Also makes the case more rigid. The SSD mounts free up a lot of space on the HDD rack. Making it possible to run five HDDs without the top HDD rack installed, improving airflow. Finally, the rubber grommets are excellent for cable management. They are placed perfectly, at least for my build. Really makes the end product of your build look nice.

Cons: At first when I got this out of the box, it felt cheap. Flimsy I mean. I was thinking, "Wow, did I really just spend all of this money for a case comparable to something I could have gotten for way cheaper?". That all went away after I finished installing everything. It all comes together and feels solid now that everything is in there and all of the screws are tightened.
Only two 5.25" bays may be a downer for some people. I would have liked at least one more, since I have my BluRay burner in the first one, and a hot swap bay in the other.
The front bezel feels solid itself, but the hinges kind of worry me. I feel like I have to be very careful when opening and closing it, so as not to break any of them.
Lastly, the room for routing cables behind the side panel can be misleading. It looks like you have tons of room with the panel off. Then when you go to install the panel, it won't fit on because of the foam hitting on wires in the back. You really have to tie down everything flush to the MB tray in order to get the panel back on without marking up the foam. No big deal though. I learn by trial and error.

Other Thoughts: I bought this to replace a TT Chaser MK-I full tower. That thing was just too huge to be in my living room next to the entertainment center. I saw the Black Pearl version of this and was in love with it. Until I came across this beautiful arctic white one on a youtube video and instantly had to have it. Now that it's all setup and sitting next to my TV and audio system, it just looks great! Matches my HiVi Swan M10 2.1 speaker system perfectly. The overall build didn't take me very long at all. Although I couldn't find any reference to what screws went to what components. This isn't my first build (build # 104 for me), so I just figured it out after some inspection of the included hardware. Then after I got done, I noticed that it is shown on the bottom of the box with all of the included hardware (drrrrr! brainfart). Using the SSD mounts behind the MB tray, I was able to remove the top drive cage and still have my four drives installed. This improved the overall airflow to my video card. It's very nice to have the option to reorient the drive cages in so many ways. The dust filters seem to catch most of the dust being drawn in by the fans. This is a huge plus in my situation. Dust seems to be a big problem in my house. It will make you vacuum more often, making your spouse happy. I added two more white led fans just for looks and more airflow. From what I hear this company is very into customer satisfaction. I've read and heard tons of reviews stating that their customer service is top notch. Also a plus since this is the first Fractal Design product I have ever bought. I think they can look forward to me being a loyal customer for a long time now. Here's what went into this build for reference.

Gigabyte GA-990XA-UD3 socket AM3+ MB
AMD Phenom II x4 960t BE - 6 cores unlocked OCd to 3.7 GHz
16 GB Corsair Vengence DDR3 1600
MSI GTX 670 Power Editon OC
120 GB Samsung 840 Evo SSD
320 GB WD Intellipower HDD
2x 300 GB WD Velociraptor 10000 RPM HDDs
Corsair Hydro H80i AIO liquid cooler
ASUS Bluray burner
Raidmax 700 watt continuous modular hybrid PS
2x 140mm Corsair white led case fans - up top
Corsair Vengence K70 mechanical keyboard (cherry MX blue)
Corsair Vengence M65 arctic white laser gaming mouse

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

  • Colton B.
  • 12/30/2013 3:14:06 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsNeat!

Pros: Great Fantastic Case! It was my first build and the large amounts of space made wiring and setting up relatively easy!

Cons: None

Other Thoughts: The price dropped $20 and got bumped to free shipping less than two days after I bought it which was a huge disappointment

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  • Keith W.
  • 12/23/2013 5:50:47 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsBEST CASE EVER-- and stuff

Pros: Simply the best case I have ever picked up
Easy to use
Cable management built in
Well thought out

Cons: There is not more of them in the world!

Other Thoughts: I got a smaller version of this case with out a window and have loved it. Its super quiet and keeps all dust out... So when I needed another one for a new pc I got the big brother with a window-- Same look and feel just a slightly larger case. This one has room behind the MOBO mounting plate to run cables etc. The drive bays are all clip & Slide in/out. Just a well thought out deal

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  • Michael p.
  • 12/20/2013 3:21:25 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsA Plus all the way!

Pros: well made, sturdy, awesome paint job, great cable manag....and of course very quiet

Cons: none really worth the price

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  • Jason S.
  • 11/8/2013 7:23:15 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsExcellent Case

Pros: - Attractive, simple, clean case. Perfect for adding graphics to. The acrylic window is nice for displaying your guts due to excellent cable management.
- Cable management is superb. Plenty of space underneath the motherboard and in/out ports for cables.
- Interior is roomy (9" wide). No problem fitting my giant Zalman heatsink in there.
- Low noise. Padded interiors and rubber grommets for HDDs provide for no vibrations.
- HDDs racks are very easy to remove/install. I've removed the top rack to lighten the overall weight of my system.
- Very sturdy. Even the plastic front bezel is very stout; no play or vibrations.
- Included case fans are silent.

Cons: - Motherboard standoff holes are drilled too small. You have to use a tool to screw them in. An adapter is included in the accessory box; it looks like one of the black case-cover thumbscrews but instead acts as a socket wrench bit. Unfortunately, the documentation makes no mention of this adapter and I only ended up finding it after I had used my socket wrench.

Other Thoughts: I purchased this case as a "downgrade" from my full tower. I needed a case that was lighter and easier to move/transport. A lot of reviewers state that the case is large/heavy; I don't think so. I downgraded from a full tower that was 26" tall and about 55 lbs. loaded -> this case is only 18" tall and about 32 lbs. loaded. I removed one of the HDD bays which made the system that much lighter. The case is very sturdy; during the install I was leaning my full body weight on it in some instances.

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

  • Brian C.
  • 10/27/2013 7:03:54 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsSimply Amazing

Pros: This is an amazing case. It is extremely well built and VERY solid. Nothing wiggles or feels loose or thin. All 140mm fan mounts for efficient and silent cooling. Plenty of sound dampening and anti-vibration material to keep things quiet. I don't know what else to tell you that isn't already listed in it's description. I am just amazed at how sturdy and strong this case is. I grabbed this on sale for $90 and that is a STEAL for a case with such great features and cable management and for how solid it is.

Cons: - The only thing I think is wrong with this case is the fact that the front door needs to be opened from the opposite direction. A lot of people like their case sideways to show off the window and their internal parts but the door opens backwards when the tower is sideways exposing the window.

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Item#: N82E16811352025
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