be quiet! LIGHT BASE 900 FX Black Tower

be quiet! LIGHT BASE 900 FX Black | Panorama ARGB Full Tower

The be quiet! LIGHT BASE 900 FX Black Full Tower delivers panoramic visibility and powerful cooling in one striking design. With massive ARGB illumination, versatile orientation options, and support for up to E-ATX motherboards, this case is built for gamers and creators who want both performance and a stunning visual showcase.

Quick Specs

3m ARGB Illumination for Total Visibility

The LIGHT BASE 900 FX Black features a 3-metre ARGB LED strip with 172 LEDs visible from every angle. Large front and side tempered glass panels provide panoramic views of your build, making it perfect for RGB enthusiasts who want their components on full display. The included ARGB controller and motherboard sync compatibility give you complete control over lighting effects.

Exceptional Cooling Flexibility

This case supports up to three 420mm radiators simultaneously – two in the top/bottom and one in the side panel. With space for up to 10 fans total and pre-installed 140mm PWM fans featuring reversed blades for optimal airflow, you can configure the perfect cooling setup for even the most demanding systems. The two-chamber design keeps cables out of the airflow path for better thermals.

Instant Layout Transformation

Change your case orientation in literal seconds thanks to relocatable feet. Switch between upright, inverted, or horizontal layouts without tools. This flexibility means the LIGHT BASE 900 FX Black adapts to any gaming room setup or desk configuration, giving you complete freedom in how you display your build.

Unmatched Expansion Capability

With dimensions of 327 x 532 x 484 mm and support for E-ATX motherboards, this full tower accommodates the largest components available. The VGA holder prevents GPU sag regardless of orientation, while the spacious interior fits multiple drives and long graphics cards. Two ARGB/PWM hubs with 12 connectors total make cable management straightforward.

Box contents

• be quiet! LIGHT BASE 900 FX Black case
• 4 x Light Wings 140mm ARGB PWM fans (3x side, 1x rear)
• ARGB controller button
• Radiator and fan mounting brackets
• VGA holder
• Mounting hardware and screws

Check before you buy

• Confirm your motherboard size (supports up to E-ATX)
• Verify your GPU length is under 49.5 cm
• Check CPU cooler height is under 19 cm
• Ensure your PSU length is under 22.5 cm

Frequently Asked Questions

Q: How many radiators can this case support?

A: Up to three radiators simultaneously – two 420mm in top/bottom and one 360mm in the side panel.

Q: Does it come with fans pre-installed?

A: Yes, it includes four 140mm Light Wings ARGB PWM fans (three side intake, one rear exhaust).

Q: Can I mount the case horizontally?

A: Yes, the relocatable feet allow for quick orientation changes between upright, inverted, and horizontal layouts.

Q: What motherboard sizes are supported?

A: ATX, EATX, micro ATX, Mini-ITX, and XL-ATX form factors are all supported.

Q: Is there a dust filter included?

A: Yes, anti-dust filters are included to help maintain system cleanliness.

The Consultant’s verdict & warranty

The be quiet! LIGHT BASE 900 FX Black Full Tower is ideal for PC enthusiasts who want maximum visibility, exceptional cooling capacity, and complete layout flexibility. Its panoramic design, massive ARGB lighting, and support for the largest components make it perfect for showcase builds. Covered by the standard Manufacturer Warranty.