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Three black 120 mm case fans with ARGB lighting and a controller

Lian Li

Lian Li UNI FAN SL-INF Flex 120 mm Normal Blade ARGB 3 Pack Controller Black

SKU CH-PCAZ-0NNG4

Three 120 mm ARGB case fans with a controller, featuring multi-zone lighting and flexible PWM or wireless speed control

  • Fan size120 mm
  • Number of fans3 Fans
  • Fan controlController
  • Product typeCase Fan
  • Compatible withCase
  • Product colorBlack

Color Black

Model LED Normal Blade

Model SL INF FLEX 120 - 3 Pack

  • Three normal-blade fans deliver standard airflow direction
  • 5V 3-pin ARGB syncs lighting through motherboard software
  • Dual-style edge design creates multi-zone lighting depth
  • LCD Flex receiver enables PWM or wireless speed control
  • Three-fan pack includes controller for simplified cable management

Three-Fan Kit with Included Controller

The Lian Li UNI FAN SL-INF Flex 120 mm Normal Blade ARGB 3 Pack ships with three 120 mm case fans and a dedicated controller. The package targets builders who want coordinated lighting and speed management across multiple intake or exhaust positions. All three units are normal-blade models, so airflow moves in the standard direction for typical case layouts.

Multi-Zone ARGB and Wireless Receiver

Each fan features a dual-style edge design with multi-zone ARGB lighting driven by a 5 V 3-pin header, allowing synchronisation through motherboard software. The updated LCD FLEX and LED FLEX receivers add wireless control via L-Connect 3 while retaining PWM speed regulation, reducing cable clutter inside the chassis. Builders who prefer pure motherboard PWM control can still use that path without losing wireless lighting features.

Normal Blade Airflow Direction Fixed

These fans are explicitly normal-blade units, not reverse-blade variants, so the airflow direction is fixed and cannot be flipped for specialised push-pull or radiator mounting schemes. Buyers needing reversible airflow for specific radiator orientations should look elsewhere, as this kit does not support that configuration.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $87.99
Pricier than about 90% of the 8,339 comparable items (median $19.99).
Fan size 120 mm
Typical for this category: the median of 1,114 items is 120 mm.

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Specifications

Product
Brand nameLian li
Model name12SLIN1F3B
Product typeCase Fan
Product colorBlack
Size & build
Fan size120 mm
Number of fans3 Fans
Compatibility
Compatible withCase
More details
Fan controlController

Other versions of this model

5 more in the same range

Questions about this item

What lighting interface does the 5 V 3-pin ARGB connector use and what does it cap in practice?

The 5 V 3-pin ARGB connector lets motherboard software control the fan lighting while fan speed is handled separately through PWM or wireless options.

What physical mounting dimensions does each 120 mm fan require in the case?

Each fan uses a standard 120 mm mounting grid, so the case must provide matching 120 mm fan slots.

How is the controller installed and which connection step is often missed?

Install the controller inside the case, connect it to a USB header for L-Connect 3 control, then link the 5 V 3-pin ARGB and PWM cables to the motherboard headers for software sync.

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