be quiet! Light Loop IO LCD 240mm Black ARGB AIO Cooler BW034
Intelligent Cooling with Advanced Display Customisation
The be quiet! Light Loop IO LCD 240mm Black is a premium all-in-one liquid CPU cooler that combines powerful cooling performance, whisper-quiet operation and extensive visual customisation. Featuring a vibrant IPS LCD display, brilliant ARGB lighting, and two Light Wings LX PWM high-speed fans, it is designed for users who want both exceptional thermal performance and a stunning showcase PC build.
With the included IO Controller and support for be quiet! IO Center software, you can display real-time system information, custom graphics, animations and videos directly on the CPU block while controlling RGB lighting effects throughout your system.
Whether you're building a compact gaming machine, creator workstation or enthusiast PC, the Light Loop IO LCD 240mm delivers premium cooling and visual flair.
Key Features & Benefits
Advanced IPS LCD Display
The integrated IPS display transforms the cooling block into a fully customisable system dashboard.
Display options include:
- CPU temperatures
- Fan speeds
- System monitoring data
- Custom images
- Animated GIFs
- Videos
- Personalised graphics and branding
Vibrant ARGB Lighting
Create stunning lighting effects with fully addressable RGB illumination on both the cooling block and fans.
Features include:
- Multiple preset lighting modes
- Advanced customisation options
- Software-based control
- System-wide lighting synchronisation
Included IO Controller
The supplied IO Controller enables advanced control through be quiet!'s software ecosystem.
Manage:
- LCD display content
- ARGB lighting effects
- Monitoring information
- Cooling performance settings
High-Performance 240mm Cooling
The 240mm radiator offers powerful thermal performance for modern CPUs, making it ideal for:
- Gaming PCs
- Content creation systems
- Streaming setups
- Productivity workstations
- Overclocked processors
Premium Light Wings LX Fans
Equipped with 2 x Light Wings LX 120mm PWM High-Speed Fans, optimised for radiator performance and low-noise operation.
Key advantages include:
- ARGB illumination
- Funnel-shaped air outlets
- Closed-loop motor design
- High static pressure
- Smooth acoustic profile
Excellent Airflow & Cooling Efficiency
Each fan delivers:
- Up to 61.8 CFM airflow
- Up to 105.1 m³/h airflow
- Up to 2.51 mmHâ‚‚O static pressure
- Maximum speed of 2100 RPM
Whisper-Quiet Operation
Engineered with be quiet!'s renowned focus on acoustics.
Noise levels:
- 17.2 dB(A) at 50% PWM
- 29.1 dB(A) at 75% PWM
- 36.8 dB(A) at 100% PWM
Advanced Pump Technology
The integrated pump features a progressive control IC for precise coolant management and reduced vibration.
- Adjustable speed: 2000 to 2900 RPM
- Maximum speed: 2900 RPM
Premium Copper Cold Plate
The nickel-plated copper base maximises heat transfer while offering enhanced corrosion resistance and long-term reliability.
Simple Maintenance
An easy-access refill port allows convenient servicing and helps maintain optimal cooling performance throughout the cooler's lifespan.
Technical Specifications
General
- Model: Light Loop IO LCD 240mm
- Colour: Black
- Cooler Type: All-in-One Liquid CPU Cooler
- Display: IPS LCD
- Lighting: ARGB
- Included Controller: IO Controller
- Weight: 1.3kg
- Tube Length: 400mm
- Refill Port: Yes
Socket Compatibility
Intel
- LGA1851
- LGA1700
- LGA1200
- LGA1155
- LGA1151
- LGA1150
AMD
- AM5
- AM4
Radiator Specifications
- Dimensions: 277 x 120 x 27mm
- Material: Aluminium
Radiator with Fans
- Dimensions: 277 x 120 x 52mm
Cooling Block
- Dimensions: 63.8 x 61.9 x 54mm
- Base Material: Copper
- Finish: Nickel Plated
Pump Specifications
- Adjustable Speed: 2000 to 2900 RPM
- Maximum Speed: 2900 RPM
- Connector: IO Connector
Fan Specifications
- Fan Model: Light Wings LX 120mm PWM High-Speed
- Quantity: 2
- Dimensions: 120 x 120 x 25mm
- Maximum Speed: 2100 RPM
- Airflow: 61.8 CFM
- Airflow Volume: 105.1 m³/h
- Static Pressure: 2.51 mmHâ‚‚O
- Bearing Type: Rifle Bearing
- Lifespan: 60,000 Hours
Noise Levels
- 17.2 dB(A) at 50% PWM
- 29.1 dB(A) at 75% PWM
- 36.8 dB(A) at 100% PWM
Connectivity
- Proprietary IO Connector
- Daisy-Chained Fan Connections
- ARGB Support via IO Controller
Included Accessories
- Thermal Grease
- Intel Mounting Kit
- AMD Mounting Kit
- ARGB/PWM Breakout Cable
- 100ml Coolant Bottle
- IO Controller
- User Manual
Certifications
- CE
- UKCA
- FCC
- RoHS Compliant
- WEEE Compliant
Package Contents
- be quiet! Light Loop IO LCD 240mm Black Cooler
- 2 x Light Wings LX 120mm PWM ARGB Fans
- IO Controller
- Intel Mounting Hardware
- AMD Mounting Hardware
- Thermal Paste
- ARGB/PWM Breakout Cable
- 100ml Coolant Refill Bottle
- Installation Guide
Ideal For
- Gaming PCs
- Compact High-Performance Builds
- RGB Showcase Systems
- AMD Ryzen AM5 Platforms
- Intel LGA1700 & LGA1851 Systems
- Streaming PCs
- Content Creation Workstations
- Enthusiast Builds
- Quiet Performance Systems
- Modern Mid-Tower Builds
Why Choose the be quiet! Light Loop IO LCD 240mm?
The be quiet! Light Loop IO LCD 240mm Black combines powerful liquid cooling, whisper-quiet acoustics and advanced visual customisation in a compact AIO solution. With its IPS LCD display, ARGB lighting, 240mm radiator, and Light Wings LX PWM fans, it delivers premium cooling performance while giving users complete control over their system's appearance.
Featuring the included IO Controller, support for custom images and videos, a premium nickel-plated copper cold plate, and broad Intel and AMD compatibility, it is the perfect cooling solution for builders seeking both style and performance. Backed by a 3-year manufacturer's warranty, the Light Loop IO LCD provides reliable cooling for today's most demanding processors.