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Black steel ATX mid-tower case, solid side panel, front door closed, two 5.25-inch bays visible

Fractal Design

Fractal Design FD-CA-DEF-R5-BK Define R5 ATX Mid Tower PC Case

SKU CH-HTVX-MA7D9 MPN FD-CA-DEF-R5-BK

A steel ATX mid-tower case with dense sound-absorbing material, ModuVent covers, two pre-installed 140 mm fans, support for eight 3.5″ drives and radiators up to 420 mm

  • TypeATX Mid Tower
  • ColorBlack
  • With Power SupplyNo
  • Power SupplyATX
  • Motherboard CompatibilityATX / Micro ATX / Mini ITX
  • Side Panelwithout Side Window
  • Dense sound-absorbing material throughout the chassis minimises system noise
  • ModuVent covers let you switch between silent and high-airflow configurations
  • Eight 3.5″ drive positions plus two dedicated 2.5″ slots provide extensive storage capacity
  • Front and top radiator support up to 420 mm for custom liquid-cooling builds
  • Two pre-installed 140 mm fans at 1000 RPM deliver balanced cooling out of the box

Define R5 silent mid tower

The Fractal Design Define R5 is a black steel ATX mid tower built for quiet operation. Dense sound-absorbing material lines the interior, and the ModuVent top covers let you choose between maximum silence or increased airflow. Two Dynamic GP14 140 mm fans are pre-installed at front and rear, running at 1000 RPM. The case supports ATX, Micro ATX and Mini ITX motherboards.

Upgrades from open or windowed cases

Builders moving from chassis with mesh panels or acrylic windows gain a solid side panel and a fully removable 5.25 inch drive cage that frees space for radiators or extra drives. The integrated three-speed fan controller handles PWM and voltage fans without software. Removable dust filters on front, top and bottom simplify maintenance when swapping to liquid cooling or adding more intake fans.

Eight 3.5 inch bays and long GPU clearance

Eight 3.5 inch positions accept both hard drives and 2.5 inch units, while two dedicated 2.5 inch mounts handle SSDs. The front accommodates radiators up to 360 mm once the drive cage is removed, and the top fits up to 420 mm with a 55 mm thickness limit for radiator plus fan. Maximum graphics card length is 440 mm, CPU cooler height 180 mm, and power supply length 300 mm without a bottom fan or 190 mm with a 120 mm bottom fan.

Highlights

  • Dense sound-absorbing material throughout the chassis minimises system noise
  • ModuVent covers let you switch between silent and high-airflow configurations
  • Eight 3.5″ drive positions plus two dedicated 2.5″ slots provide extensive storage capacity
  • Front and top radiator support up to 420 mm for custom liquid-cooling builds
  • Two pre-installed 140 mm fans at 1000 RPM deliver balanced cooling out of the box

Specifications

BrandFractal Design
SeriesDefine R5
ModelFD-CA-DEF-R5-BK
TypeATX Mid Tower
ColorBlack
With Power SupplyNo
Power SupplyATX
Motherboard CompatibilityATX / Micro ATX / Mini ITX
Side Panelwithout Side Window
External 5.25" Drive Bays2
Internal 3.5" Drive Bays8 x 3.5" HDD positions (can also accommodate 2.5" units)
Internal 2.5" Drive Bays2 x 2.5" dedicated SSD unit positions
Expansion Slots7
Front Ports2 x USB 3.0, 2 x USB 2.0, 2 x Audio
Fan OptionsFront: 2 x 120mm / 2 x 140mm fan (1 x Fractal Design Dynamic GP14 fan, 1000 RPM speed included)
Top: 3 x 120mm / 3 x 140mm fan
Rear: 1 x 120mm / 1 x 140mm fan (1 x Fractal Design Dynamic GP14 fan, 1000 RPM speed included)
Bottom: 2 x 120mm / 2 x 140mm fan
Side: 1 x 120mm / 1 x 140mm fan
Pre-installed FansFront - 1 x 140mm / Rear - 1 x 140mm
Radiator OptionsFront radiator
360, 280, 240, 140 or 120 mm (without drive bays)
Top radiator
420, 360, 280, 240, 140 or 120 mm (a thickness limitation of 55 mm for both radiator + fan applies on 420, 280 and 140 mm radiators; 420 and 360 mm radiators require removal of the ODD bay)
Rear radiator
120 or 140mm
Bottom radiator
120 or 240 mm (Use of radiators in the bottom position limits the PSU length to 165 mm)
Max GPU Length440 mm
Max CPU Cooler Height180 mm
Max PSU Length190/170 mm with a bottom 120/140 mm fan installed
300 mm when not using any bottom fan location
Dimensions20.91" x 9.13" x 18.19"
Weight22.69 lbs.
FeaturesOptimally designed for silent computing with high density noise-reducing material throughout the case for maximum sound absorption, while not compromising on airflow and cooling capabilities.
Extensive water cooling support for a case of this size; housing radiators up to 420mm in the top and 360mm in the front.
Equipped with new tool-less ModuVent fan slot covers allowing the user to install more fans if desired or keep fan slots covered to maximize sound absorption.
Including two Fractal Design Dynamic GP14 140mm fans developed for superlative airflow while still maintaining low no
Shipping weight12.34 kg
Package size615 × 538 × 338 mm

Questions about this item

Will the Define R5 fit my full-size graphics card?

The case accepts graphics cards up to 440 mm long, which covers almost every current full-size model.

What power-supply length can I use if I keep the bottom fan installed?

With a 120 mm bottom fan the PSU can be 190 mm long; with a 140 mm fan the limit is 170 mm.

Can I mount a 360 mm radiator in the front without removing the drive cage?

A front 360 mm radiator requires the drive cage to be removed; the cage is fully removable to make room.

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