Fractal Design Define S Full ATX Case, Black

MX58011 Define S Full ATX Case, Black
MX58011 Define S Full ATX Case, Black MX58011 Define S Full ATX Case, Black MX58011 Define S Full ATX Case, Black MX58011 Define S Full ATX Case, Black

Product Info

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.



  • 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 pre-drilled 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.


Type ATX Case with Flexible Water Cooling Potential
Color Black
Motherboards ATX, Micro ATX, Mini ITX motherboard compatibility
Expansion Slots 7 Expansion slots
Side Window None
Multi GPU Support Yes
Video Card Length Graphics cards up to 425 mm in length with front fans installed, without compromising HDD capacity; Graphics cards up to 450mm in length without front fans installed directly in line with the GPU.
CPU Cooler Height Up to 180mm in height
5.25" Drive Bays None
3.5" / 2.5" Drive Bays 3 x 3.5" Bays (Can accommodate 2.5" units)
2 x 2.5" Dedicated Bays
Power Supply Supports ATX PSUs up to 180/170 mm with a bottom 120/140mm fan installed; When not using any bottom fan location longer PSUs up to 300mm can be used.
Cooling Front: 3 x 120/140 mm fans (included is 1 Fractal Design Dynamic GP14 fan, 1000 RPM speed)

Rear: 1 x 120/140 mm fan (included is 1 Fractal Design Dynamic GP14 fan, 1000 RPM speed)

Top: 3 x 120/140 mm fan (not included) or 1 - 180 mm fan with 165mm hole spacing (not included)

Bottom: 1 x 120/140 mm fan (not included)

Side: 1 x 120/140 mm fan (not included)

Liquid Cooling Front: 360, 280, 240, 140 and 120 mm radiators of all thicknesses

Top: 420, 360, 280, 240, 140 and 120 mm radiators. (A thickness limitation of 55mm for both radiator + fan applies on 420, 280 and 140 mm radiators)

Bottom: 120 mm radiator (Use of radiators in the bottom position limits the PSU length to 165 mm)

Rear: 120 or 140 mm radiator

Front (Side) I/O Panel 2 x USB 3.0
Audio in/out
Power button with LED (blue)
HDD activity LED (blue)
Reset button
Dimensions (LxWxH) 233 x 451 x 520 mm (9.17 x 17.75 x 20.47 in)
Weight 9.1 kg (20.06 lb)