Define 7

The Define 7 is the latest pinnacle of the renowned Define series, setting a new standard for what you should expect from a mid-tower case when it comes to modularity, flexibility and ease of use.

  • • New chassis design opens up to fully expose the case interior
  • • Anodized aluminum front panel with reversible dual-handed hinges
  • • Multibracket converts unused fan positions to HDD, SSD or pump mounts



View specifications

Introducing the Define 7 series

Re-defining versatility

Open and interchangeable

Swap in the ventilated panel to add three filtered fan positions;
remove the entire top to build and route with zero hindrance

Superior airflow by design

Three Dynamic X2 GP-14 fans come preinstalled with room to expand up to a total of nine fans.
  • Impressive cooling capacity with a total of nine 140 mm or 120 mm fan mounting positions

  • Easy-to-clean high airflow nylon filters with full PSU coverage and convenient front access

  • The single 5.25” ODD bay can be converted to an additional 140 mm front fan mount with filtered louver covering

Open layout for massive headroom

You’ll find more than enough space for your custom water loop with large reservoirs and radiators up to 420 mm in the default Open Layout.
  • Adaptable dual-layout interior design fits large motherboards up to 285 mm E-ATX

  • Support for radiators up to 360 mm in front, 420 mm up top, or 280 mm in the base

6 SSD/HDD trays + 2 SSD brackets + 1 Multibracket included

Superlative storage

Convert to Storage Layout and install up to 14 HDDs alongside four dedicated SSDs mounts
  • 6 universal HDD/SSD brackets included with 14 positions total in Storage Layout

  • 2 dedicated SSD brackets included with 4 positions total

  • Versatile Multibracket converts any unused fan position to an HDD, SSD or pump mount

  • Sturdy new HDD cage design with vibration damped trays

Exceptionally silent

Silence-optimized construction with industrial sound-damped front, top, and side panels

Cable management

Integrated cable guides with Velcro ties simplifies cable management behind the board

Nexus+ 2 fan hub

Ultra-slim Nexus+ 2 fan hub connects up to three PWM fans and six 3-pin fans

Type-C interface

Five front USB ports including one USB Type-C with speeds up to 10 Gbps

Versatile new Multibracket

The included Multibracket lets you convert
any unused fan position to an HDD, SSD or pump mount.

Universal Multibracket

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European Hardware Award Winner for best ATX case 2020 & 2021
European Hardware Association Read the full review
"Fractal Design Define 7 combines a striking aesthetic design with a bevy of convenient build features and impressive performance." Read the full review
“Possibly the finest mid-tower chassis on the market today.”
"We’ve waited a long time for an update of Define R6 and Fractal has delivered a stellar case for 2020."
"Design 7 XL is a great computer case for anyone looking for a starting point to build a complete water cooled system, or a system dedicated to mass storage."
"It is very impressive that Fractal Design can continue to improve on a case that was already quite good"
Think Computers Read the full review
"The Fractal Design Define 7 is one of the best PC cases on the market. this case comes with silent operation in mind and features an impressive level of build quality."
"Fractal Design has made a near perfect upgrade to the Define series with the new Define 7"
"Die Verarbeitungsqualität ist hervorragend, die Modularität des Gehäuses sucht ihresgleichen. Der Hersteller hat an viele kleine Details gedacht, die den Anwendern das Leben leichter machen werden. Der Einbau neuer Hardware geht leicht von der Hand, anstatt zu frustrieren."
"Insgesamt hat Fractal Design die neue Define-Generation an etlichen Stellen verbessert. Wer einen optisch und akustisch dezenten Midi-Tower mit enormer Flexibilität sucht, ist mit dem Define 7 bestens bedient."
"Mit seinen vielen Umbauvarianten im Innenraum und dem schlichten Design überzeugt auch das Define auch in Generation 7 erneut als Alleskönner im Bereich der PC-Gehäuse und wird damit seinen Platz am Markt behaupten."
"Mit dem Define 7 hat es Fractal Design nicht leicht, den bereits sehr guten Vorgänger – das Define R6 – zu toppen. Doch sie haben es geschafft: der potenzielle Käufer erhält ein schlichtes und hochwertiges Gehäuse, welches aufgrund der Modularität für quasi jegliche Hardwarekombination vorbereitet ist. Die Verarbeitung ist auf einem hervorragendem Niveau und die Materialwahl überzeugt."
Basic-Tutorials Read the full review
【真「箱」测评】价值四位数的铁盒子?瑞典分形工艺再度升级|Define 7 & Define 7XL全球首发
有梦想的阿Ken老师 Read the full review
"Das Gehäuse überzeugt mit guter Verarbeitung, einem großen Platzangebot, großer Funktionalität sowie drei 140 mm Lüftern."
Hardware-Inside Read the full review

“amazing attention to detail” … “just next level better” - OC3D TV

"Even with fans at a 100% under stress, all you heard from the XL build was a gentle little breeze" - Techtesters

"Improved In All The Right Ways" BPS Customs

"one of the most compelling cases we've reviewed in a long time" Gamer Nexus

How to videos

Drive Cage Relocation

Filter Removal


Layout Change

Top Panel Swap

Radiator Bracket


  • 3.5"/2.5" Universal drive brackets
    6 included, 14 positions total
  • Dedicated 2.5" drive brackets
    2 trays included, 4 positions total
  • 5.25” drive mounts
  • Expansion slots
    7 + 2
  • Front ports
    1 x USB 3.1 Gen 2 Type-C, 2 x USB 3.0, 2 x USB 2.0, Audio I/O, Power button, Reset button
  • Total fan mounts
    9 x 120/140 mm
  • Front fan
    3 x 120/140 mm (2 x Dynamic X2 GP-14 included)
  • Top fan
    3 x 120/140 mm
  • Rear fan
    1 x 120/140 mm (1 x Dynamic X2 GP-14 included)
  • Bottom fan
    2 x 120/140 mm
  • Dust filters
    Top, 2 x front, full length bottom
  • Fixed velcro straps
  • Cable routing grommets
  • Captive thumbscrews
    HDD brackets, SSD brackets, PSU bracket
  • Left side panel
    Industrial sound-damped steel or Tempered Glass
  • Right side panel
    Industrial sound-damped steel


  • Motherboard compatibility
    E-ATX (max 285 mm) / ATX / mATX / mITX
  • Power supply type
  • PSU max length
    250 mm (with HDD cage installed)
  • GPU max length
    Storage layout: 290 mm - Open layout: 470 mm (445 mm w/ front fan)
  • CPU cooler max height
    185 mm
  • Front radiator
    Up to 360/280 mm
  • Top radiator
    Up to 360/420 mm
  • Rear radiator
    120 mm
  • Bottom radiator
    Up to 240/280 mm
  • Cable routing space
    30 mm
  • Vertical GPU Support (with Flex B-20 or Flex VRC-25)
    65mm total clearance, standard 2-slot GPU (<38mm thickness) recommended for optimum cooling


  • Case dimensions (LxWxH)
    547 x 240 x 475 mm
  • Case dimensions w/o feet/protrusions/screws
    533 x 240 x 451 mm
  • Package dimensions (LxWxH)
    558 x 363 x 641 mm
  • Net weight
    Solid Version: 13.49 kg, TG Version: 13.45 kg
  • Package weight
    Solid Version: 15.98 kg TG Version: 15.94 kg
  • Volume
    57.7 liters


  • Warranty
    2 Years
  • Package contents
    Define 7 case. Accessory box. User manual. Ventilated top. 4 x HDD/SSD trays (for a total of 6)
  • Define 7 Black Solid
    SKU: FD-C-DEF7A-01 EAN: 7340172702191 UPC: 843276102197 JAN: 4537694275842
  • Define 7 Black TG Light Tint
    SKU: FD-C-DEF7A-02 EAN: 7340172702207 UPC: 843276102203 JAN: 4537694275859
  • Define 7 Black TG Dark Tint
    SKU: FD-C-DEF7A-03 EAN: 7340172702214 UPC: 843276102210 JAN: 4537694275866
  • Define 7 Black/White TG Clear Tint
    SKU: FD-C-DEF7A-05 EAN: 7340172702238 UPC: 843276102234 JAN: 4537694275880
  • Define 7 White Solid
    SKU: FD-C-DEF7A-09 EAN: 7340172702276 UPC: 843276102272 JAN: 4537694276184
  • Define 7 White TG Clear Tint
    SKU: FD-C-DEF7A-06 EAN: 7340172702245 UPC: 843276102241 JAN: 4537694275897
  • Define 7 Gray Solid
    SKU: FD-C-DEF7A-07 EAN: 7340172702252 UPC: 843276102258 JAN: 4537694275903
  • Define 7 Gray TG Light Tint
    SKU:FD-C-DEF7A-08 EAN: 7340172702269 UPC: 843276102265 JAN: 4537694275910