Please note that our call centre and Washington location will be closed from 12/04/25 and repoen 21/04/25.
Please direct all customer service requests to our email or contact form, we will reply to you as soon as possible. All orders will be shipped as normal from our warehouse during this time.
The Fractal Design Define S borrowed the appearance sound dampening technology and support for a wide variety of components from the widely popular Define Series while introducing a new innovative internal layout
Optimally designed for silent computing while not compromising on airflow and cooling capabilities
Innovative internal layout providing a perfectly straight airflow path to the CPU heatsink for air cooling set ups or extensive radiator mounting possibilities for water cooling set ups
Extensive water cooling support for a case of this size; housing radiators up to 420mm in the top and 360mm in the front
Including smart reservoir brackets; featuring drill-free reservoir mounting on the front of the motherboard tray and predrilled pump mounting holes on the bottom panel
Equipped with ModuVent™ fan slot covers providing the option of additional cooling or maximum sound absorption
Including two Fractal Design Dynamic GP14 140mm fans developed for superlative airflow while still maintaining low noise levels
Maintaining a dust-free interior with dust filters that cover the front and bottom air intakes
Introducing newly designed hard drive trays placed vertically behind the front partition of the motherboard tray; Three sturdy steel trays with vibration-dampening grommets allowing for installation of one 3.5” or 2.5” drive on each tray without disrupting the airflow or interfering with the radiator mounting possibilities
An additional 2 dedicated steel SSD trays cleanly placed behind the motherboard tray
Long motherboard tray extending to the front panel contributing to an extremely clean build hiding both hard drives and cables
The Fractal Design Define S lends the appearance sound dampening technology and support for a wide variety of components from the widely popular Define Series while introducing a new innovative internal layout. The Define S case is packed
with intelligently designed enthusiast-oriented features delivering a silent case with powerful and expansive air and liquid
cooling support presented in a stunning Scandinavian inspired construction.
The modernized internal layout of the Define S omits the optical drive bays instead focusing on a clear straight airflow path
and uncompromising water cooling support.
The Define S case reaches the highest level of silent computing through strategically placed dense sound-absorbing material multiple ModuVent™ fan vent covers and finely tuned Dynamic Series fans.
Extensive cooling support
Optimally designed for silent computing without compromising on airflow and cooling capabilities
Innovative internal layout providing a straight airflow path to the CPU heat sink for air cooling set ups or extensive radiator mounting possibilities for water cooling setups
Extensive water cooling support for a case of this size; housing radiators up to 420 mm in the top and 360 mm in the front
Including smart reservoir brackets; featuring drill-free reservoir mounting on the front of the motherboard tray and pre-drilled pump mounting holes on the bottom panel
Including two Fractal Design Dynamic GP14 140mm fans developed for superlative airflow while still maintaining low noise levels
Equipped with ModuVent™ fan slot covers providing the option of additional cooling or maximum sound absorption
Smart open layout and storage functionality
Maintaining a dust-free interior with dust filters that cover the front and bottom air intakes
An additional 2 dedicated steel SSD trays cleanly placed behind the motherboard tray
Long motherboard tray extending to the front panel contributing to an extremely clean build hiding both hard drives and cables
Introducing newly designed hard drive trays placed vertically behind the front partition of the motherboard tray; Three sturdy steel trays with vibration-dampening grommets allowing for installation of one 3.5" or 2.5" drive on each tray without disrupting the airflow or interfering with the radiator mounting possibilities
Form Factor: ATX
Small Form Factor: No
Power Supply Wattage: No PSU
Motherboard Support: "ATX Micro ATX Mini ITX"
Window(s): Yes (Window)
Connectors / Controls: 2 x USB 3.0 Audio in/out Power button with LED (blue) HDD activity LED (blue) Reset button
Drive Bays: 3 x 3.5"" HDD/2.5"" SSD positions 2 x 2.5"" dedicated SSD unit positions (SSDs up to 17mm thick)
Expansion Slots: 7 Expansion slots
Cooling System:Included Front: 1 x Dynamic GP-14 140mm fan Rear: 1 x Dynamic GP-14 140mm fan
Fan Mounts Front: 3 x 120 / 140 mm Top: 3 x 120 / 140 mm or 1x 180mm w/ 165mm hole spacing Rear: 1 x 120 mm / 140 mm Bottom: 1 x 120 mm / 140 mm Side: 1 x 120 mm / 140 mm
.: " Water Cooling options: Front: Up to 360mm radiator Top: Up to 420mm radiator* Rear: Up to 140mm radiator Bttom: 120 mm radiator (Max PSU length of 165mm when using bottom radiator)
*A thickness limitation of 55mm for both radiator + fan applies on 420 280 and 140mm top radiators"
Colour: Black
Material: Left side panel: Clear transparent window Right side panel: Industrial sound-dampened steel
Compatability: " GFX Card: Max 180/170 mm with a bottom 120/140mm fan installed or 300mm when not using any bottom fan
Max CPU Cooler: 182 mm
PSU: 425 mm with front fans installed without compromising HDD capacity or 450mm without front fans installed directly in line with the GPU"
Weight/Dimensions: 8.5 kg (WxHxD) 233 x 451 x 520 mm With feet/screws/protrusions: 233 x 465 x 533 mm
Additional Features: See Overview / Video
Accessories: User manual Accessory box
Package Weight: 9.7500 kg
Warranty: 2 Years
FD-CA-DEF-S-BK-W
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