be quiet! LIGHT BASE 900 FX Black Full Tower ATX Case
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About This Item
- Full Tower ATX case with panoramic glass panels for gaming
- Supports ATX, EATX, micro ATX, Mini-ITX and XL-ATX motherboards
- 1x 3.5″ and 4x 2.5″ drive bays with 8 expansion slots
- Max component clearance: 49.5cm GPU, 19cm CPU cooler, 22.5cm PSU
- Pre-installed ARGB fans with multi-colour illumination and PWM control
- Liquid cooling support with radiators up to 420mm in the bottom
- Tool-free reversible layout with detachable radiator brackets and GPU holder
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be quiet! LIGHT BASE 900 FX Black | Full Tower ARGB Showcase
The be quiet! LIGHT BASE 900 FX Black Full Tower is designed for UK gamers and creators who demand high airflow and visual impact. This full tower case supports extensive liquid cooling and large components. It features a panoramic glass design and pre-installed ARGB fans. You can invert the layout quickly to suit your space.
Slim Specifications
| Metric | Spec. |
|---|---|
| Form Factor | Full Tower |
| Motherboard Support | ATX, EATX, micro ATX, Mini-ITX, XL-ATX |
| Max GPU Length | 49.5 cm |
| Max CPU Cooler Height | 19 cm |
| Pre-installed Fans | 4x Light Wings 140mm PWM |
| Dimensions (H x W x D) | 484 x 327 x 532 mm |
Panoramic Showpiece Design
This case offers a seamless view of your components. Large glass panels wrap around the front and side. It creates a true showcase build. The design allows you to admire your hardware from multiple angles.
Invertible Layout & Footprint
You can change the case orientation in seconds. Relocatable feet let you flip the chassis or set it horizontally. This flexibility adapts to your desk setup or room layout. No tools are required for the transformation.
Advanced Cooling Capacity
The chassis supports up to ten fans total. It accommodates radiators up to 420mm in the top and bottom. A 360mm radiator fits in the side panel. This provides massive thermal headroom for overclocked CPUs and GPUs.
Neat Cable Management
A dual-chamber design hides drives and cables. This keeps the main chamber clear for airflow. The case supports backside connector motherboards (ASUS BTF, MSI Project Zero). It ensures a clutter-free interior view.
Integrated ARGB & PWM Control
The case includes two hubs offering 12 connectors. They are positioned at the top and bottom. This simplifies wiring for fans and lighting. You can sync effects via motherboard software or use the included button.
Box contents
- be quiet! LIGHT BASE 900 FX Black chassis
- 4x pre-installed Light Wings 140mm PWM fans
- ARGB and PWM hub units
- Relocatable feet for inversion
- Accessory kit for hardware installation
Check before you buy
- Confirm your motherboard size matches the supported form factors (E-ATX to Mini-ITX).
- Verify your PSU length does not exceed 22.5 cm.
- Check your GPU length is under 49.5 cm for fit.
- Confirm UK plug compatibility for any added RGB controllers.
Frequently Asked Questions
Q: Does the case come with a power supply?
A: No, this chassis does not include a power supply.
Q: Can I install a radiator in the bottom?
A: Yes, it supports bottom radiators up to 420mm.
Q: Is the glass panel tempered?
A: The input specifies glass material but does not state tempered.
Q: Does it support vertical GPU mounting?
A: The VGA holder works with vertical installs, but a riser cable is not specified.
Q: Are the front USB ports Gen 2?
A: Yes, it has USB 3.2 Gen 2 Type-A and Type-C ports.
The Consultant’s verdict & warranty
This case suits builders seeking a high-airflow, visually striking full tower with flexible orientation. It excels in liquid cooling potential and component clearance. Covered by the standard Manufacturer Warranty.
| Technical details | |
|---|---|
| Number of 3.5" bays | 1 |
| Number of 2.5" bays | 4 |
| Supported motherboard form factors | ATX, EATX, micro ATX, Mini-ITX, XL-ATX |
| Supported HDD sizes | 2.5,3.5" |
| Suitable for | Gaming |
| Side window | Yes |
| Reset button | Yes |
| Product colour | Black |
| Number of expansion slots | 8 |
| Maximum CPU cooler height | 19 cm |
| Maximum graphics card length | 49.5 cm |
| Maximum PSU length | 22.5 cm |
| Type | PC |
| Form factor | Full Tower |
| Compliance certificates | CE, RoHS, UKCA, WEEE |
| Material | |
| Material | Acrylonitrile butadiene styrene (ABS), Glass, SGCC |
| Indication | |
| Illumination location | Case fans, Front |
| Illumination colour | Multi |
| Illumination | Yes |
| Ergonomics | |
| Reset button | Yes |
| On/off button | Yes |
| Design | |
| Anti-dust filter | Yes |
| Material | Acrylonitrile butadiene styrene (ABS), Glass, SGCC |
| Number of 3.5" bays | 1 |
| Number of 2.5" bays | 4 |
| Supported motherboard form factors | ATX, EATX, micro ATX, Mini-ITX, XL-ATX |
| Suitable for | Gaming |
| Side window | Yes |
| Reset button | Yes |
| Illumination location | Case fans, Front |
| Illumination colour | Multi |
| Illumination | Yes |
| Product colour | Black |
| Number of expansion slots | 8 |
| Maximum CPU cooler height | 19 cm |
| Maximum graphics card length | 49.5 cm |
| Maximum PSU length | 22.5 cm |
| Type | PC |
| Form factor | Full Tower |
| On/off button | Yes |
| RGB control button | Yes |
| Power supply | |
| Supported power supply form factors | ATX, PS2 |
| Power supply included | No |
| Ports & interfaces | |
| 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 |
| Audio input | Yes |
| Audio output | Yes |
| Cooling | |
| Rear radiator sizes supported | 120,140 mm |
| Maximum airflow | 56 cfm |
| Side fans installed | 3x 140 mm |
| Number of side fans supported (max) | 3 |
| Side fans diameters supported | 120,140 mm |
| Rear fans installed | 1x 140 mm |
| Number of rear fans supported (max) | 1 |
| Rear fans diameters supported | 120,140 mm |
| Number of top fans supported (max) | 3 |
| Top fans diameters supported | 120,140 mm |
| Number of bottom fans supported (max) | 3 |
| Bottom fans diameters supported | 120,140 mm |
| Fan speed | 1300 - 1500 RPM |
| Liquid cooling capability | Yes |
| Bottom radiator sizes supported | 120,140,240,280,360,420 mm |
| Fan speed control | Yes |
| Side radiator sizes supported | 120,140,240,280,360 mm |
| Maximum air pressure | 1.49 mmH2O |
| Fan 2 maximum airflow | 51.37 cfm |
| Fan 2 maximum air pressure | 1.1 mmH2O |
| Pulse-width modulation (PWM) support | Yes |
| Storage | |
| Supported HDD sizes | 2.5,3.5" |
| Weight & dimensions | |
| Width | 327 mm |
| Depth | 532 mm |
| Height | 484 mm |
| Weight | 16.8 kg |
| Packaging data | |
| Package width | 431 mm |
| Package height | 632 mm |
| Package depth | 572 mm |
| Package weight | 18.7 kg |
| Other features | |
| Maximum airflow | 56 cfm |
| Identifiers | |
| Distributor SKUs | CABEQ-BGW71, 574144, STD10220394 |

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