BE QUIET

be quiet! Light Base 900 FX Full Tower PC Case White ATX

Maximum CPU cooler height190
Supported HDD sizes2.5/3.5
Maximum graphics card length495
Supported power supply form factorsATX/PS2
Fan speed1300 - 1500
Width327 mm

The be quiet! Light Base 900 FX is a full tower PC case built around a panoramic design with large transparent panels on both the front and side, giving you an unobstructed view of your components from virtually any angle.

Description

360° ARGB Lighting With Room to Build Big

Broad motherboard compatibility: supports ATX, E-ATX, XL-ATX, Micro-ATX and Mini-ITX form factors
3 metres of ARGB LED strip featuring 172 individual LEDs visible from all sides of the case
4 pre-installed Light Wings fans — one 140 mm rear exhaust and three 140 mm PWM fans with reversed blades on the side mount for clean airflow and visibility
Reversible layout lets you reconfigure the case orientation in seconds without tools
White finish with full-length transparent panels that complement both light and dark component builds

This full tower case suits enthusiast builders, content creators and system integrators who prioritise showcase-worthy aesthetics alongside genuine airflow performance in high-end ATX or E-ATX workstation and gaming builds.

Specifications

General

Brand	BE QUIET
Form factor	Full Tower
Model name	LIGHT BASE 900 FX
Product colour	White
Material	Acrylonitrile butadiene styrene (ABS)/Glass/SGCC
Type	PC
Side window	Yes
Illumination	Yes
Suitable for	Gaming
Maximum PSU length	225
Illumination colour	Multi
Number of 2.5" bays	4
Number of 3.5" bays	1
Rear fans installed	1x 140 mm
Side fans installed	3x 140 mm
Illumination location	Case fans/Front
Number of expansion slots	8
EAN	4260052191781

Processor

Maximum CPU cooler height	190

Storage

Supported HDD sizes	2.5/3.5

Graphics

Maximum graphics card length	495

Audio

Audio input	Yes
Audio output	Yes

Ports

USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	2
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity	1

Keyboard & controls

Reset button	Yes
On/off button	Yes
RGB control button	Yes

Battery & power

Power supply included	No
Supported power supply form factors	ATX/PS2

Performance & capacities

Fan speed	1300 - 1500
Maximum airflow	56
Anti-dust filter	Yes
Fan speed control	Yes
Maximum air pressure	1.49
Fan 2 maximum airflow	51.37
Liquid cooling capability	Yes
Fan 2 maximum air pressure	1.1
Cooling & Ventilation System	side 3x Light Wings Reversed 140mm PWM Whiterear 1x Light Wings 140mm PWM White

Features

Case product features	Transparent panel
Top fans diameters supported	120/140
Rear fans diameters supported	120/140
Rear radiator sizes supported	120/140
Side fans diameters supported	120/140
Side radiator sizes supported	120/140/240/280/360
Bottom fans diameters supported	120/140
Bottom radiator sizes supported	120/140/240/280/360/420
Number of top fans supported (max)	3
Supported motherboard form factors	ATX/EATX/micro ATX/Mini-ITX/XL-ATX
Number of rear fans supported (max)	1
Number of side fans supported (max)	3
Pulse-width modulation (PWM) support	Yes
Number of bottom fans supported (max)	3