be quiet! Dark Base 900 Black

Outstanding Flexibility and Silence

be quiet! Dark Base 900: unrivaled flexibility with impeccable cooling and silence features. It was designed for high-end enthusiasts and individualists – all of those who expect the highest standards when it comes to modularity, compatibility and design for their high-end workstations as well as overclocked and silent water-cooled systems.

Dark Base 900 has numerous modularity options to satisfy every desire with lots of features to support special configurations. Aluminum surfaces and steel offer highest stability with a look of extreme elegance. Simply an engineering work of art!

• Fully versatile thanks to modular construction, offering an relocatable motherboard tray, repositionable HDD slots, support for even E-ATX and XL-ATX as well as the possibility of an inverse layout

• Three pre-installed SilentWings® 3 140mm PWM fans featuring a smooth-running 6-pole motor, fluid-dynamic bearing and funnel-shaped air inlets

• Effective full circuit airflow system with innovative noise-reducing vents all around the case

• Completely sound insulated case with decoupled elements for motherboard, power supply and drives

• Four areas for water cooling radiators up to 420mm on top, front, back and base of the case

• 2-in-1 side panel vent can be closed for silent operation or opened for two additional fans

• Product conception, design and quality control in Germany

Applications:

• High-end workstations and desktop PCs

• High-resolution gaming and multimedia systems

• Extremely overclocked systems

• Super silent water-cooled PCs

Feature Details

Unrivaled Flexibility

• Motherboard tray with enhanced possibilities to suit individual space requirements

  • Completely relocatable and usable as a test bench

  • Adjustable to three different heights

  • Installation alongside the left panel for an inverted layout

• Repositionable HDD tray for individual space requirements inside the case

• E-ATX and XL-ATX support permits installation of practically any motherboard

• Installation options of up to 7 decoupled HDDs, 15 SSDs and 2 optical drives

Impeccable Cooling and Silence

• Three virtually inaudible SilentWings® 3 140mm PWM fans offer unrivaled and uncompromising performance with a broad range of amazing features:

  • 6-pole fan motor for very low power consumption and less vibration

  • Fluid-dynamic bearing with copper core enables a super long life span

  • Unique airflow-optimized fan blade design

  • Fan frame with funnel-shaped air inlets produces high air pressure

  • High quality IC motor controller reduces electrical noise

• Intelligent full circuit airflow system with noise-dampened vents all around the case

• Manual stepless fan controller supports up to three PWM and three 3-pin fans

• Installation of up to six additional 140mm fans or up to nine additional 120mm fans possible

• Ready for water cooling radiators up to 420mm with four mounting slots:

  • Front: 420mm – Top: 420mm – Back: 140mm – Base: 280mm

• Built-in insulation in front, top cover and side panels

• Decoupled motherboard tray, power supply tray and drive slots for reduced vibration and noise

• 2-in-1 side panel vent can be closed for silent operation or opened with the possibility to mount two additional 120mm fans

Advanced Assembly and Handling

• Generous space thanks to repositionable single HDD slots

• Impressive features permit individual configurations and setups

• Customizable cable management thanks to carefully placed pass-throughs

• Two cleanable dust filters that can be conveniently removed from the front

High-quality Materials and Elegant Design

• Premium aluminum surfaces

• Steel parts from 0.8mm to 1.0mm for highest stability

• Compatibility with all be quiet! products and all available graphics cards

Outstanding Service and Support

• 3-year manufacturer's warranty

• Quick support is available via our international hotline, Mondays to Fridays from 9:00am to 5:30pm CET:
  +49 (0) 40-736 76 86 - 98