Fractal Design Define R4 Case

Fractal Design Define R4 Black Pearl Mid Tower FD-CA-DEF-R4-BL

Fractal Design Define R4 Black Pearl Mid Tower FD-CA-DEF-R4-BL

(145 reviews)
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  • Pre-fitted with dense noise absorbing material
  • ModuVent System allows the user the option to have unrivaled silence or optimal airflow
  • Top fan positions now allow slim 240/280mm radiators to be mounted
  • Two SSDs can be installed on the back of the motherboard plate
  • Top HDD cage (5 HDD) can be rotated 90 degrees or removed for additional airflow
  • 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
  • Select slim radiators can be mounted in front fan holder (requires the bottom HDD cage to change position)

Specifications Overview

Release Date November 2013

* First availability for purchase, it may not correspond to the actual market launch date.

Type ATX Mid Tower
Color Black
Includes Power Supply
External 5.25" Drive Bays 2
External 3.5" Drive Bays 0
Internal 2.5" Drive Bays 2
Internal 3.5" Drive Bays 8
Motherboard Compatibility ATX, Micro ATX, Mini ITX
Front Panel I/O USB 2.0 Type A, USB 3.2 Gen 1 Type A
Dimensions 232 mm x 464 mm x 523 mm
Volume 56 L
Max VGA length allowance 295 mm
Max VGA length allowance (w/o HDD cage) 430 mm
Expansion Slots 7


  • Great cable management
  • Fan controller
  • Dust filter for all intake-fans
  • Very solid
  • Quiet


  • Heavy
  • Only 2 fans included


  • ATX, Micro ATX, Mini ITX motherboard compatibility
  • 7 + 1 expansion slots
  • 2 - 5.25" bays
  • 8 - 3.5" HDD trays - all compatible with SSDs, 2 - 2.5" extra SSD positions
  • 3 - ModuVent™ plates - two in the top and one in the side
  • 7 - fan positions (2 Silent Series R2 fans included)
  • Filtered fan slots in the front and bottom
  • CPU coolers up to 170mm tall (when no fan is installed in the side panel)
  • ATX PSUs up to 170mm deep when using the bottom fan location, when not using this fan location longer PSUs (up to 270mm deep) can be used
  • Graphics cards up to 295mm in length with the top HDD cage installed
  • With the top cage removed, graphics cards up to 430mm in length may be installed
  • 26mm of space for cable routing behind the motherboard plate
  • Thick rubber grommets on all holes on the motherboard plate
  • Colours available: Black Pearl, Titanium Grey, Arctic White
  • Case dimensions (WxHxD): 232 x 464 x 523mm
  • Package dimensions (WxHxD): 320 x 535 x 610mm
  • Net weight: 12.3 kg

Cooling system

  • Front: 1 - 120/140mm fan (included is a hydraulic bearing 140mm Silent Series R2 fan, 1000 RPM speed; 1 - 120/140mm fan (not included)
  • Rear: 1 - 120/140mm fan (included is a hydraulic bearing 140mm Silent Series R2 fan, 1000 RPM speed)
  • Top: 2 - 120/140mm fans (not included) - positions also support some models of 240 radiators, depending on configuration
  • Bottom: 1 - 120/140mm fan (not included)
  • Side: 1 - 120/140mm fan (not included)
  • Fan controller: 1 - Integrated fan controller for up to 3 fans (included)

Front interface

  • 2 - USB 3.0, 2 - USB 2.0
  • Audio I/O
  • Power button with LED (blue)
  • Reset button
  • Fan controller (behind door)

Package contents

  • Define R4 computer case
  • User manual
  • Accessory box

Expert reviews


If you’re less inclined to push your hardware to its limit though, or just want a case with a little more refinement to it, the Define R4 is a great choice and a worthy successor to the Define legacy.


The Fractal Design Define R4 has taken the R3 and successfully fused it with the backbone of the Arc chassis. The newest revision adds USB 3.0 support, a new front panel design, and more options for fans.


Read the full review

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