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Be Quiet Dark Base Pro 900 Silver ATX Case

  • Three pre-installed SilentWings® 3 140mm PWM fans
  • Completely sound insulated case
  • Effective Airflow
  • Fully windowed side panel

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QuickFind: 753709

Mfr part code: BGW12

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    Be Quiet Dark Base Pro 900 Silver ATX Case Product Description

    Outstanding Flexibility and Silence
    be quiet! Dark Base Pro 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 Pro 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
    • Elegant, fully windowed side panel made of tinted and tempered glass
    • Eye-catching LED illumination with five switchable colors that you can freely position in the case
    • Integrated wireless charger for Qi enabled devices such as smart phones
    • Product conception, design and quality control in Germany
    • High-end workstations and desktop PCs
    • High-resolution gaming and multimedia systems
    • Extremely overclocked systems
    • Super silent water-cooled PCs
    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
    • Advanced PWM hub and manual fan controller supports up to four PWM and four 3-pin fans
    • Installation of up to six additional 140mm fans or up to seven 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
    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
    • RGB LED illumination with five switchable colors that can be freely positioned
    • Wireless charger for Qi enabled devices (e.g. smart phones)
    • Elegant side window of 4mm tinted and tempered glass
    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

    Add-ons and Accessories


    £25.26 inc. vat
    £29.99save £4.73
    £21.05 ex. vat
    £24.99save £3.94


    £43.46 inc. vat
    £36.21 ex. vat

    Technical Specifications


    Form Factor Mid tower
    Max Mainboard Size Extended ATX
    Supported Motherboards ATX, microATX, Mini-ATX, Extended ATX, XL-ATX
    Internal Bays Qty 8
    Front Accessible Bays Qty 2
    Product Material Aluminium, steel, ABS plastic
    Colour Silver
    Cooling System Front: 140 x 140 x 25 mm fan x 2 / 1000 rpm / 59.5 cfm / 15.5 dBA / SilentWings 3 ¦ Rear: 140 x 140 x 25 mm fan x 1 / 1000 rpm / 59.5 cfm / 15.5 dBA / SilentWings 3 ¦ Front: 120/140 mm fan mount x 1 ¦ Top: 120/140/180 mm fan mount x 4 / 4 x 120 mm or 3 x 140 mm or 1 x 180 mm fan supported ¦ Bottom: 120/140 mm fan mount x 2
    CPU Cooler Max Height 185 mm
    Video Card Max Length 470 mm
    System Cabinet Features Screwless drive bays, side panel dust filter, removable dust filter, vibration damping, front dust filter, water cooling holes, cable management system, removable HDD cage, bottom dust filter, airflow channels, integrated Qi (wireless charging dock), RGB illumination

    Expansion / Connectivity

    Expansion Bays 2 (total) / 2 (free) x front accessible - 5.25" ¦ 1 (total) / 1 (free) x internal - 2.5" ¦ 7 (total) / 7 (free) x internal - 3.5"
    Expansion Slots 8
    Interfaces 2 x USB 3.0 ¦ 2 x USB 2.0 ¦ 1 x headphones - mini-jack ¦ 1 x microphone - mini-jack


    Included Accessories PWM hub
    Compliant Standards RoHS 2011/65/EU


    Power Device No power supply

    Dimensions & Weight

    Width 24.3 cm
    Depth 57.7 cm
    Height 58.5 cm
    Weight 14.39 kg

    Manufacturer Warranty

    Service & Support Limited warranty - 3 years

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