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 Specification Form Factor: ATX Small Form Factor: No Power Supply Wattage: No PSU Motherboard Support: \"ATX, Micro ATX, Mini ITX\" Window: 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 Warranty: 2 Years