Article number: BGW14


Orange rev. 2

Outstanding flexibility and silence

be quiet! Dark Base Pro 900 Orange rev. 2 is the perfect case for all who expect the highest standards when it comes to modularity, compatibility and design.

  • Motherboard tray and HDD slots with enhanced possibilities for individual requirements
  • Three Silent Wings 3 PWM fans 
  • Stepless dual-rail fan controller is switchable between Silence and Performance modes
  • Ready for radiators up to 420mm
  • PSU shroud and HDD slot covers provide a neat interior
  • Side panel made of tempered glass
  • Eye-catching RGB LED illumination 
  • Three years manufacturer’s warranty 
  • German product conception, design and quality control 


Flexibility for individual requirements

The decoupled motherboard tray adapts to suit individual requirements, being completely relocatable and usable as a test bench. You can adjust it to three different heights or install it alongside the left panel in an inverted layout with redefined airflow. It is fully compatible with E-ATX and XL-ATX motherboards.


Impeccable cooling and silence

The three preinstalled Silent Wings 3 140mm PWM fans offer virtually inaudible operation. They are equipped with a smooth-running 6-pole motor, durable fluid-dynamic bearing and airflow-optimized fan blade design. The frame has funnel-shaped air inlets that generate high air pressure.


Generous space for your setups

The installation options are flexible thanks to repositionable single HDD slots. Supports up to 5 HDDs, 10 SSDs and 2 optical drives out of the box. The practical slot covers serve to hide any unused HDD slots and keep the inner workings neat and tidy. This enables you to create systems that are just as individual as you are yourself. 


Offering unexpected possibilities

The PSU shroud offers you a variety of solutions – not just for hiding the PSU and to keep the system neat and tidy. The cover plates are separately detachable, making it possible to install a fan or an SSD on the top of the PSU shroud and leave enough space for a radiator in the front. 


A silence concept by the silence experts

With its smart silence concept, Dark Base Pro 900 rev. 2 is the perfect case for the extreme requirements of overclocked systems and super silent water-cooled PCs. It can carry up to seven additional fans, up to four radiators and has noise-reducing vents all around the case that provide ultra-effective full circuit airflow.


Creating separate cooling zones

The eight PWM fan connectors are divided over two rails, and each is switchable between Silence and Performance Mode. This makes it possible to create two cooling zones that can be controlled by just the front panel switch. If you want all fans to run at the same speed, you can switch both channels to the same mode.


A perfect view inside your PC

The case is equipped with an elegant, fully windowed side panel that is made of tinted and tempered glass. The eye-catching internal LED illumination comes in six switchable colors. You can locate the LED strips freely inside the PC case.


Fulfilling practically every desire

The front I/O port offers perfect compatibility for your high-end PC. A connector of USB 3.1 Type C Gen. 2 is supported. Integrated wireless charger for Qi enabled devices such as smart phones.

All models at a glance:


General data

Model Dark Base Pro 900 Orange rev. 2
PSU form factor ATX PS/2
Motherboard compatibility E-ATX / XL-ATX / ATX / M-ATX / Mini-ITX
Case size excl. stands (L x W x H), (mm) -
Installation of motherboards with backplate
Case size incl. stands (L x W x H), (mm) 577 x 243 x 586
Dimensions side panel window (L x W), (mm) 479 x 525
Color option Orange
Weight (kg) 14.39
USB 2.0 -
USB 3.0 2
USB 3.1 Gen 2 Type C 1
HD Audio I/O Mic + Audio
Expansion slots 8
Fan mounting locations 10
Qi charger / Quick Charging Option


open all / close all


Top cover ABS / Aluminum
Side panel Steel / ABS
Side panel window 4mm tempered glass
Front panel ABS / Aluminum
Stands ABS

Drive bay capacity

5.25 bays 2
3.5 slots (max.) 7
3.5 slots (scope of delivery) 5
2.5 slots (max.) 14
2.5 slots (scope of delivery) 10

Pre-installed fans

Fan @ front 2x Silent Wings 3 140mm PWM
Fan @ rear 1x Silent Wings 3 140mm PWM
Fan @ top -
Dimensions (L x W x H), (mm) Front: 140 x 140 x 25 / Rear: 140 x 140 x 25
Fan speed @ 100% PWM / 12V (rpm) 1600
Noise level @ 100% PWM / 12V (dB(A)) 28.1
Airflow @ 100% PWM / 12V (CFM / m3/h) 77.57 / 131.79
Air Pressure @ 100% PWM / 12V (mm H2O) 2.16
Voltage range (V DC) 12
Input power (W) 1.68
Input current (A) 0.5
Connector 4-pin
Lifespan (h / 25°C) 300,000
Fan controller Dual rail stepless fan controller (8x 4-pin) / PWM hub

Optional fan installation

Front (mm) 1x 140 (w/o ODD cage, bracket included)
Top (mm) 3x 140 / 4x 120
Bottom (mm) 2x 140 / 2x 120
Side panel (mm) -
PSU shroud 1x 120

Optional radiator installation

Front (mm) 120 / 140 / 240 / 280 / 360 / 420
Top (mm) 120 / 140 / 180 / 240 / 280 / 360 / 420
Bottom (mm) -
Rear (mm) 120 / 140


Max.construction height of CPU cooler unit (mm) 185
Airflow channel Full circuit airflow system


RGB LED illumination internal
LEDs synchronizable with RGB controller/motherboard
Expandable RGB controller

PSU compatibility

Maximum dimensions excl. bottom fan (mm) 284
Maximum dimensions incl. bottom fan (mm) 150

Graphics card

HDD cage (in height of graphics card) installed (mm) 323
HDD cage (in height of graphics card) removed (mm) 472

Insulation and damping

Top panel insulation mats -
Front panel insulation mats
Side panel insulation mats
Anti-vibration decoupled HDD
Anti-vibration decoupled fan
Anti-vibration decoupled PSU
Anti-vibration decoupled motherboard-tray

Removeable dust filters

Front 1
Bottom 1
Side panel 1


Screw set (Drives/Motherboard)
Rubber rail (pcs.) -
Standoff (pcs.) 3 (for E-ATX)
LCS bracket (pcs). 1
HDD slot cover (pcs.) 6
Upper fan bracket (pcs.) 1
HDD panel rubber grommet (pcs.) -
SSD bracket for PSU shroud 1
LED strips (pcs.) 1
Cable ties (pcs.) 6 (Velcro)


Warranty (Years) 3
International hotline / free of charge ✓ / DE, FR

Logistics data, RRP

Article number BGW14
EAN code 4260052186589
Certifications CE / RoHS
Dimensions, package (L x W x H), (mm) 655 x 325 x 680
Gross weight, package (kg) 16.52
Pieces per packaging unit 1
RRP (€) 269

DARK BASE PRO 900 | Orange rev. 2
Article number: BGW14


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