Lian Li
Lian Li SL-INFINITY Fluid Dynamic Bearing 140mm Case Fan
Best high-performance cooling for enthusiasts prioritizing clean, aesthetic PC builds.
Elevate your PC's aesthetics and cooling with the Lian Li SL-INFINITY 140mm Case Fan in Black. This fan introduces a captivating new look, merging UNI FAN SL and AL elements with an infinity mirror effect for multi-layer lighting visible from any angle. It ensures longevity and quiet performance thanks to its reliable Fluid Dynamic Bearing. Delivering 72.7 CFM of airflow while maintaining a low noise level of 28 dBA at 1600 RPM, it offers excellent performance. Installation is simplified by the signature UNI FAN design, connecting easily via a 4-pin connector for a clean build.
$30.99
Owner Satisfaction
4.5
/ 5
Category Rank
866
/ 3605
#866 in Computer System Cooling Parts
Price vs Category Average
-79%
Below average
Fan Size
140
/ mm
Who it's for
- PC builders prioritizing high-end aesthetic builds
- System builders wanting a clean, cable-free interior
- Users seeking long-term reliability and silent performance
Who should skip it
- Budget-conscious builders avoiding premium component pricing
- Users preferring standard motherboard-based RGB control
- Enthusiasts who dislike proprietary software ecosystems
Performance breakdown
Aesthetic Appeal
The infinity mirror design creates a stunning, multi-dimensional visual centerpiece.
Installation Simplicity
Daisy-chaining fans significantly reduces cable clutter for a cleaner build process.
Acoustic Performance
Maintains a whisper-quiet profile even when pushing high volumes of air.
Airflow Efficiency
Delivers robust cooling capacity suitable for demanding high-performance system configurations.
Build Longevity
Fluid Dynamic Bearing technology ensures smooth, reliable operation over extended lifespans.
Static Pressure
Strong pressure ratings make these effective for pushing air through radiators.
Key Specs
Fan Size
140mm
Max Speed
1600 RPM
Airflow
72.7 CFM
Noise Level
28 dBA
Static Pressure
2.88 mmH2O
Bearing Type
Fluid Dynamic
Power Connector
4-pin
Depth
0.98 in. (25.00 mm)
Features
- Stunning multi-layer infinity mirror lighting
- High airflow 140mm fan size
- Quiet operation at maximum speed
- Reliable Fluid Dynamic Bearing
- Simplified daisy-chain installation
- Vibrant RGB lighting customization
- Effective cooling performance
What customers say
Customers overwhelmingly praise the Lian Li SL-INFINITY 140mm fans for their revolutionary aesthetic design, centered on the stunning infinity mirror RGB effect that elevates PC visuals. The modular, daisy-chaining mechanism is a key highlight, drastically simplifying cable management for builders. While the initial software setup requires some learning, users value the seamless installation and customization experience. Functionally, the fans offer competent cooling performance with quiet operation, maintaining a favorable noise to performance ratio. The primary drawback noted is the premium price point, reflecting the cost associated with superior aesthetics and convenience. Despite the expense, enthusiasts seeking top-tier visual appeal and simplified building find these fans unparalleled.
Know before you buy
The infinity mirror design creates a multi-layered, 3D lighting effect that remains visible from both the front and the sides of the fan. This provides a more cohesive, depth-filled aesthetic compared to traditional flat RGB rings.
The UNI FAN system allows you to slide multiple fans together and connect them with a single cable module. This significantly reduces the number of individual fan wires you need to route to your motherboard or controller.
While 140mm fans offer better airflow at lower speeds than 120mm models, you must ensure your case supports 140mm mounting points. Check your case specifications to confirm compatibility for your intended radiator or chassis exhaust locations.
At its maximum speed of 1600 RPM, the fan produces 28 dBA of noise. This is relatively quiet for a 140mm fan, making it a solid choice for users who want high performance without excessive fan noise.
Fluid Dynamic Bearings use a lubricant to reduce friction between moving parts. This results in a longer lifespan for the fan and quieter operation compared to standard sleeve or rifle bearings.
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