be quiet! DARK BASE 900 ATX Full Tower Computer Chassis - Black/Silver

• 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
• Manual stepless fan controller supports up to three PWM and three 3-pin fans
• Effective full circuit airflow system with innovative noise-reducing vents all around the case
• Completely sound insulated case with decoupled elements for motherboard tray, 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

The motherboard tray can be repositioned vertically, to suit individual space requirements, or installed alongside the left panel with redefined airflow. It is removable for use as a bench table.

The three pre-installed virtually inaudible SilentWings® 3 PWM fans with unique fan blade design, rubberized fan frame and funnel-shaped air inlets provide excellent air circulation.

Adjustable side panel cover that you can close for absolute silence, partly open for more air intake, or completely open with the possibility to mount up to two optional fans.

Manual stepless fan controller supports up to three PWM and three 3-pin fans. 2x USB 3.0, 2x USB 2.0, HD audio jacks.

Flexible installation options thanks to repositionable single HDD slots. Support for up to 7 HDDs, 15 SSDs and 2 optical drives.

Innovative noisereducing vents all around the case result in an effective full circuit airflow.