Define 7 XL Dark Tempered Glass

The Define 7 XL sets a new standard for what you should expect from a full tower case in terms of 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
  • • Mount up to 18 HDD/SSDs plus five SSDs in the Storage Layout

Choose type

Find retailer

Introducing the new Define 7 XL series

Re-defining capacity

Plenty of room for massive builds

  • Use the Open Layout for more headroom and gargantuan water-cooling with radiators up to 480 mm in front or top and 280 mm in the base

  • Spacious, extensively adaptable dual-layout interior easily accommodates large motherboards up to E-ATX and SSI-EEB

  • Two 5.25” ODD bays can be converted to an additional front fan mount with filtered louver covering

  • Ventilated PSU shroud with two-part removable cover

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

Superlative storage possibilities

  • Mount up to 18 HDD/SSDs plus five SSDs in the Storage Layout (6 HDD/SSD trays + 2 SSD brackets + 2 Multibrackets included)

  • Detachable PSU cable shield and integrated cable guides with Velcro straps further simplify cable management behind the board

  • Sturdy new HDD cage design with vibration damped trays

  • 13 pass-through holes with ten rubber grommets and two removable covers make for clean cable routing regardless of motherboard size

Airflow and cooling

  • Outstanding cooling capacity with a total of 9 x 140 mm or 11 x 120 mm fan mounts and three preinstalled Dynamic X2 GP-14 fans

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

  • The two 5.25" ODD bays can be converted to an additional front fan mount with filtered louver covering

Exceptionally silent

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

USB Type-C

USB 3.1 Gen 2 Type-C with fast charging support and speeds up to 10Gbps


Easily holds your SSI-EEB motherboard


Top panel effortlessly swaps from sound damped solid steel to filtered ventilation

Versatile new Multibracket

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

Universal Multibracket

“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
"A large full tower PC case that offers a tonne of space for storage devices, multi-GPU configurations, numerous fans, and even the most elaborate of water-cooling setups."
"Fractal Design Define 7 combines a striking aesthetic design with a bevy of convenient build features and impressive performance." (Define 7-review) Read the full review
"Fractal Design has made a near perfect upgrade to the Define series with the new Define 7"

“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 + 2 included, 18 positions total
  • Dedicated 2.5" drive brackets
    2 included, 5 positions total
  • 5.25” drive mounts
  • Expansion slots
    9 + 3
  • 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
    11 x 120 mm or 9 x 140 mm
  • Front fan
    4 x 120 mm or 3 x 140 mm, (2 x Dynamic X2 GP-14 included)
  • Top fan
    4 x 120 mm or 3 x 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, Bottom + PSU
  • Fixed velcro straps
  • Cable routing grommets
  • Captive thumbscrews
    HDD brackets, SSD brackets, PSU bracket
  • Left side panel
    Tempered glass
  • Right side panel
    Industrial sound-damped steel


  • Motherboard compatibility
  • Power supply type
  • PSU max length
    250 mm (both HDD cages installed)
  • GPU max length
    Storage layout: 359 mm - Open layout: 549 mm (524 mm w/ front fan)
  • CPU cooler max height
    185 mm
  • Front radiator
    Up to 480/420 mm
  • Top radiator
    Up to 480/420 mm
  • Rear radiator
    120 mm
  • Bottom radiator
    Up to 240/280 mm
  • Cable routing space
    30 mm
  • Vertical GPU Support (with Flex VRC-25)
    65mm total clearance, standard 2-slot GPU (<38mm thickness) recommended for optimum cooling


  • Case dimensions (LxWxH)
    604 x 240 x 566 mm
  • Case dimensions w/o feet/protrusions/screws
    590 x 240 x 548 mm
  • Package dimensions (LxWxH)
    646 x 357 x 708 mm
  • Net weight
    16.64 kg
  • Package weight
    18.84 kg
  • Volume
    77.6 liters


  • Package contents
    Define 7 XL - Accessory box - User manual - Ventilated top panel - ODD bracket - ODD bay cover - 2 x HDD/SSD trays
  • EAN
  • UPC
  • JAN
  • Product code