Define R5 Window

Define R5机箱是经典的Define静音系列机箱中的新晋成员。Define R5承襲了Define系列简约大气的斯堪的纳维亚的极致简约风范并且从结构强度到空间扩展都进行了全面的升级。

  • 最佳静音机箱典范,机箱内部使用特殊的高密度抗噪材料,能大幅度吸收噪音,且保留良好的散热效能
  • 机箱内部结构设计精良支援顶极水冷系统,顶部可支持长420mm散热排,前侧可装360m散热排



View specifications


Define R5机箱使用高密度的抗噪材料和独家的ModuVent™设计,搭配Fractal Design Dynamic GP 14 140 mm 风扇,在绝对静音和完美散热间达最佳的平衡。 Define R5机箱内部空间设计精巧灵活,可支持8个硬盘位置和超長顯卡,内部结构全模组化设计提供了绝佳配置方案。除了极静音之外,散热效能更是强大且具高度扩充性。


  • 最佳静音机箱典范,机箱内部使用特殊的高密度抗噪材料,能大幅度吸收噪音,且保留良好的散热效能

  • 机箱内部结构设计精良支援顶极水冷系统,顶部可支持长420mm散热排,前侧可装360m散热排

  • 搭配新型的独家ModuVent™设计,不需工具可轻松安装风扇增加风流或是保持最佳的静音效能

  • 内带有2把最新的Fractal Design DynamicGP14 140mm静音风扇,大风流有效带走热能,低噪音实现最强静音表现

  • 机箱前方和底部附有可水洗的防尘过滤网,方便取出清洁,保持机箱内部无灰尘堆积

  • 机箱前门经特殊设计,可双向开门,更贴近每个使用者的使用习惯


  • 主板后方设有2个SSD专用安装位置,无需使用工具便能安装拆卸SSD

  • 兩組可拆卸的硬盘架可支持多達8个3.5”或2.5”的硬碟盤,在內部配置上更灵活,更能依个人喜好配置机箱内部空间

  • 内部结构全模组化的设计,让用户能依需求,移除ODD硬盘架位置以换取最大的内部机箱空间,提升水冷或者气冷散热效能

  • Define R5硬盘托架坚持采用金属材料,更防震也更坚固耐用。托架两侧特别降低高度以利气流流通

  • 机箱左侧特别安装新型快拆装置,可更快速便捷的安装或拆卸

  • 风扇控制器巧妙的隐藏于前面板后面、最多可支援三把风扇

内带有2把最新的Fractal Design DynamicGP14 140mm静音风扇,大风流有效带走热能,低噪音实现最强静音表现




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"There's also of course the argument of “if it ain't broke, don't fix it”, and given the success of the Define series thus far Fractal would arguably have been unwise to mess with the design too much. In summary, the Define R5 is reliably good, and that's hardly a complaint – this is still the case get if you're gunning for low noise and minimalist looks"
"Starting from a position that the R5 looked like a refreshed R4, I came to be won over by this new design. The cosmetics are indeed quite familiar however the clever design used on the drive bays means you have so many cooling options that you can make this case do almost anything you want. Heck, I even like the shiny chromed feet. The key to this modular design is the use of a square pattern of mounting holes that is repeated all over the case. If you plan on building a conventional PC that doesn’t push the limits of the R5 then you probably won’t get the most from the hardware. On the other hand if you have a hankering for multiple radiators this should be right at the top of your shopping list."
"As we have watched the Define Series from Fractal Design grow up in the last few years, we have no doubt that the Define R5 is the pinnacle of all the models delivered to date. This model keeps all the things we have come to like in the Define Series, like silence in operation, a simplistic exterior, the use of sound absorbent materials, and it is built to take on anything that a chassis will go through, and then some."
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  • 3.5" HDD/2.5" SSD positions
  • 2.5" dedicated SSD unit positions
    2 (fits SSDs up to 12 mm thick)
  • 5.25" bays
    2 (removable)
  • Expansion slots
  • Front ports
    2x USB 3.0, 2x USB 2.0, Audio in/out, Power button with LED (blue), HDD activity LED (blue), Reset button
  • Total fan mounts
  • Front fan
    2x 120/140 mm (1x Fractal Design Dynamic GP14 fan, 1000 RPM speed included)
  • Top fan
    3x 120/140 mm
  • Rear fan
    1x 120/140 mm (1x Fractal Design Dynamic GP14 fan, 1000 RPM speed included)
  • Bottom fan
    2x 120/140 mm
  • Side fan
    1x 120/140 mm
  • Dust filters
    Front fans, Bottom fans (ejects from the front of the case)
  • Cable routing grommets
  • Fixed velcro straps
  • Captive thumbscrews
    Right side panel
  • Left side panel
    Clear transparent window
  • Right side panel
    Industrial sound-dampened steel


  • Power supply type
  • Motherboard compatibility
    ATX, Micro ATX, Mini ITX
  • Front radiator
    360, 280, 240, 140 or 120 mm (requires removal of 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 (Bottom radiator limits the PSU length to 165 mm)
  • PSU max length
    190/170 mm with a bottom 120/140 mm fan installed or 300 mm when not using any bottom fan location
  • GPU max length
    310 mm with the top HDD cage installed or 440 mm with the top cage removed
  • CPU cooler max height
    180 mm
  • Cable routing space
    20 - 35 mm


  • Case dimensions (WxHxD)
    232 x 451 x 521 mm
  • Case dimensions - with feet/screws/protrusions
    232 x 462 x 531 mm
  • Net weight
    10.3 kg
  • Package dimensions (WxHxD)
    327 x 615 x 540 mm
  • Package weight
    12.2 kg


  • Package contents
    Define R5 computer case, User manual, Accessory box
  • EAN
  • UPC
  • Additional information
    Available for System Integrators
  • Product code (Black)
  • Product code (Blackout)
  • Product code (Titanium)
  • Product code (White)