The Lian Li SL FLEX 120 Uni Fan Infinity ARGB Reverse PWM 120mm Black features three-zone ARGB lighting, and infinity-mirror effects. With an FDB bearing, up to 2200 RPM fan speed, and support for L-Connect 3 or motherboard control, the fan combines strong cooling performance with flexible lighting.
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Features
Uni Fan SL-INF Flex 120
120 mm modular fan series available in LCD / LED, black / white, and standard / reverse-blade options.
Three-zone ARGB lighting with fan blade, side infinity mirror, and edge lighting effects.
Dual-sided frame design with asymmetrical infinity-mirror styling for a dimensional RGB look.
Supports L-Connect 3, motherboard ARGB sync, and PWM fan control.
Multiple control modes for wireless themes, USB LCD customisation, or motherboard control.
FDB bearing and optimised fan design deliver strong, quiet cooling performance.
Next-Gen Connections, Endless Flexibility - ARGB
3 Control Modes
1.8”LCD Display
Three Light Zones
Infinity Mirror
Two Different Designs
FDB Bearing
L-Wireless Sync
Support MB Control
Multiple Options, Complete Flexibility
Available in LCD and LED versions, with black, white, standard, and reverse-blade options to suit any build configuration.
Note: Existing UNI FAN SL-INF Wireless fans can be used with the SL-INF FLEX Receiver, allowing users to expand or upgrade their setup without purchasing additional fans or another L-Wireless Receiver.
Expanded LCD, Enhanced Visuals
Featuring a newly designed 1.8″ LCD with a refined narrow-bezel design, 400 x 400 resolution, a 60Hz refresh rate, and support for MP4, GIF, JPG, and PNG, it delivers crisper visuals and greater creative freedom for personalised displays.
1.8” LCD Display
Slimmer Bezel
Full Blade Coverage
60Hz Refresh Rate
400 x 400 Resolution
Asymmetrical Design, Infinite Depth
The SL-INF FLEX series features a dual-sided frame design, with an angled pattern on one side and a dual-rectangle design on the other. Layered lighting effects create a richer, more dimensional visual experience.
Three Zones, Endless Brilliance
The SL-INF FLEX series features three independently controlled lighting zones, each delivering its own unique visual effect. With dual-sided frame lighting and a central infinity mirror, it creates a full-range RGB showcase from every angle.
ZONE 1: Fan blades and central hub infinity mirror
ZONE 2: Outer edges of the dual-side infinity mirrors and side light strips
ZONE 3: Inner edge of the side infinity mirror
Connect Either Way, Flexible Installation
The SL-INF FLEX series includes a receiver adaptor, allowing users to change the frame orientation while keeping the original connection direction. This makes installation more flexible without affecting usability or visual consistency.
Note: This is for SL-INF LCD version only
Important Installation Notice: SL-INF LCD FLEX Receiver
Important: The UNI FAN SL-INF LCD FLEX receiver includes an adaptor that allows the receiver to be installed on either side. Do not install the receiver on one end and the adaptor on the opposite end, as this configuration will result in connection issues. The receiver and adaptor should always be installed together on the same side.
Enhanced Bearing Design
A newly engineered oil retention groove (shown in red) around the fan bearing helps keep lubricant precisely where it’s needed, ensuring consistent lubrication for reduced friction, quieter operation, and long-term bearing reliability.
Flexible Control, Your Way
Using the included cables, the FLEX Series supports both L-Connect 3 and motherboard control, giving you the flexibility to choose the control mode that best fits your setup.
Control More, Cable Less
Connect both the 4-Pin PWM and 5V 3-Pin ARGB cables to your motherboard, then pair with the L-Wireless Controller for flexible fan speed and lighting control. Built-in LCD themes and motherboard ARGB synchronisation create a cleaner build with seamless personalisation.
Note: The L-Wireless Controller is optional for L-Connect 3 software control, but required for Wireless Mode. LCD Triple Packs do not include an L-Wireless Controller.
Transform your LCD with 29 built-in wireless themes, featuring 6 stylish clock displays and 13 real-time system monitoring layouts. Personalise data sources, colours, and sensor readings to create a display that truly reflects your style.
Tailor your LCD dashboard in L-Connect 3 with preset sensor display layouts, showcasing key system data with clarity and style.
Connect the 5V 3-Pin ARGB cable to unify fan lighting with your motherboard RGB ecosystem, bringing a cohesive visual style while preserving flexible fan speed control.
Advanced LCD Personalisation
Create a fully personalised LCD experience with custom images, GIFs, videos, and built-in preset themes through USB 2.0 and L-Wireless control.
Note: The L-Wireless Controller is optional for L-Connect 3 software control, but required for Wireless Mode. LCD Triple Packs do not include an L-Wireless Controller.
Create your own monitoring dashboard on the LCD screen with custom backgrounds, live system data, and flexible layouts that perfectly match your build style.
Layer 3 - 2D Animation
Layer 2 - Modular Asset
Layer 1 - Image / Video
Turn your LCD into a personalised showcase with custom PNGs, GIFs, transparent overlays, and animated visual effects.
Seamless LCD Showcase
Create a seamless LCD showcase with built-in USB mode themes designed for dual- and triple-fan setups in both vertical and horizontal layouts.
Personalise each theme with your preferred data sources, sensor colours, and background styles through L-Connect 3 to match your build.
Built for Motherboard Sync
Control fan speed and lighting through the motherboard BIOS or motherboard software without a wireless controller. For LCD fans, first connect via USB to L-Connect 3 to set the default offline theme. Once saved, the content remains active, allowing users to switch to the 5V 3-Pin ARGB cable for independent lighting control without keeping the software connected in real time.
Note: The L-Wireless Receiver has a single connection port. Use either the 5V 3-Pin ARGB cable or the USB 2.0 cable.
(MB Software Controls Lighting & Fan Speed).
Note: Wireless Mode offers 29 built-in LCD preset themes with dedicated Fan RPM display for real-time fan monitoring.
Longer redesigned cables make routing cleaner and cable management easier.
SL INF FLEX LCD Receiver - 550+200mm
SL INF FLEX LED Receiver - 550+200mm
FLEX Receiver 5V 3-Pin ARGB Cable - 650mm
FLEX Receiver USB 2.0 (9-Pin) Cable - 650mm
Engineered for Performance, Built for Cooling
Featuring FDB bearings and an optimised aerodynamic design, the SL-INF FLEX series delivers powerful airflow, high static pressure, and quiet operation, keeping demanding systems cool without compromising acoustics.
One Controller, Complete Control
Driven by 2.4GHz wireless technology, one L-Wireless Controller unifies up to 10 groups of compatible LIAN LI devices through a compact rear I/O USB receiver and dedicated PWM receivers, creating a cleaner, more streamlined wireless ecosystem.
Wireless Series
Strimmer Series
Hydroshift II Series
Flex Series
Note: Each controller supports up to 10 channels and is compatible with all UNI FAN Wireless Series products, including TL FLEX, SL-INF FLEX, STRIMER WIRELESS, and UNI FAN SL Wireless. Support for additional products will be added in future updates.
Exclusive Software, Complete Customisation
With L-Connect 3, lighting effects and fan curves are fully within your control. Built-in presets and customisable profiles let you fine-tune every detail and create a system that reflects your style.
Custom Device Naming
Customise fan names and drag to rearrange their order, making it easy to build smooth, personalised lighting flows that match your setup.
Visual Identification, Easy Pairing
Pair fans in seconds through L-Connect 3. Quickly locate each fan with Device Finder, or bind all detected devices at once for a faster, smoother setup.
Backed by a 3 year Lian Li warranty.
