12 Best Lian Li Case Fans in 2026, Approved by Experts

Good airflow is about more than adding bright fans to every open mount. Blade direction, radiator resistance, cable routing, and lighting control all shape the finished build. The Best Lian Li Case Fans below suit builders who want a cleaner layout and airflow choices that match their case, alongside 120mm CPU cooler advice.

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Lian Li UNI Fan TL Flex 120 ARGB

Size 1 x 120mm - TL Flex

Product Group Personal Computer

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Infinity-mirror ARGB lighting gives this Lian Li UNI Fan TL Flex a distinctive look for builds where visible case fans are part of the design. It is a black 120mm PWM case fan with a FLEX receiver, intended for standard rather than reverse airflow orientation. Lian Li describes it as a high-airflow model, though the listing does not provide a CFM figure, bearing type, or noise rating. Keep in mind that a controller is not included, so it is best suited to builders who already have compatible control hardware or are planning their fan setup carefully.

Pros & Cons

Features infinity-mirror ARGB lighting
Uses a 120mm PWM fan format
Includes a FLEX receiver
Listed as a high-airflow case fan
Clearly identified as the standard, non-reverse version

Controller is not included
The listing does not state an airflow figure, bearing type, or noise level
Buyers need to confirm compatibility with their planned UNI Fan TL Flex control setup

Lian Li UNI Fan SL-Infinity 120

Product Group Personal Computer

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Built for a Lian Li-focused PC build, the UNI Fan SL-Infinity UF-SLIN120-3B is listed simply as a case fan, making it most suitable for shoppers who already know they need this exact model. Amazon's supplied details do not state fan size, bearing design, airflow, or noise level, so meaningful performance comparisons are not possible from this listing alone. It also provides no feature bullets or description to clarify lighting, control, or included accessories. The clear model identification is useful for replacement searches, but buyers should confirm connector compatibility and package contents with the seller before ordering.

Pros & Cons

Recognizable Lian Li UNI Fan SL-Infinity model identification
Listed specifically as a PC case fan
Detailed model number helps when searching for a matching replacement

The listing does not specify fan size, airflow, bearing type, or noise level
No description or feature list is provided
Connector type, controls, lighting details, and included accessories are not stated

-9%

Lian Li UNI Fan Reverse SL Infinity

Product Group Home Entertainment

~~$20.99~~ Save $1.99

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Built for a clean-looking PC build, this black UNI Fan Reverse SL Infinity model brings Lian Li’s reverse-fan variant to a 120mm case-fan format. Its fluid dynamic bearing is a welcome detail for buyers who prefer a bearing design commonly associated with smooth, durable operation. Beyond that, the provided listing is notably light on performance data: it does not state airflow, noise level, static pressure, speed range, RGB details, or included accessories. It is best suited to shoppers who already know they want this specific Lian Li fan style and can confirm the remaining compatibility details before buying.

Pros & Cons

Uses a fluid dynamic bearing
Standard 120mm fan size
Black color is easy to coordinate with many PC builds
Specific Reverse SL Infinity model designation helps identify the intended variant

Airflow performance is not specified in the provided listing
Noise level is not specified in the provided listing
The provided data does not confirm speed, lighting, connector, or accessory details

Lian Li UNI Fan Reverse SL Infinity

Size 3.30

Product Group Home Entertainment

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Built around Lian Li’s Reverse SL Infinity design, this white 120mm case fan is aimed at builders who want a coordinated UNI Fan setup without straying from a clean visual theme. Its fluid dynamic bearing is the main confirmed hardware detail, a bearing style generally valued over basic sleeve designs for smooth operation. Airflow and noise-level figures are not listed in the available product data, so it is difficult to compare cooling output or acoustics directly with competing 120mm fans. Check your existing UNI Fan configuration and case compatibility before buying.

Pros & Cons

Confirmed 120mm case-fan size
Uses a fluid dynamic bearing
White color offers a clean build-matching option
Reverse SL Infinity model designation helps identify the intended variant

Airflow performance is not specified in the available listing data
Noise-level information is not specified
The provided data does not detail included accessories or compatibility requirements

Lian Li SL-Infinity 140mm White Fan

Product Group Home Entertainment

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White-focused PC builds get a clean match from this 140MM Lian Li SL-Infinity case fan. Its listed fluid dynamic bearing is a meaningful detail for builders who prefer a bearing design commonly associated with smooth, dependable fan operation. Beyond the white finish, the available product data keeps things fairly limited: airflow and noise-level figures are not specified, so it is difficult to compare cooling output or acoustics against alternatives. Still, it is a straightforward option for someone selecting a 140MM Lian Li fan and prioritizing the listed bearing type and color.

Pros & Cons

Listed 140MM fan size
Uses a fluid dynamic bearing
White color is clearly identified in the product title
Made by Lian Li

Airflow performance is not specified in the available listing data
Noise-level information is not specified
The available data does not list included accessories or control compatibility

Lian Li UNI Fan SL-INF Flex 120 Black

Size 120mm

Product Group Personal Computer

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Visual-focused PC builds get plenty to work with here: the SL-INF Flex 120 combines triple-zone ARGB lighting with Lian Li's infinity mirror design for a more layered look than a plain illuminated fan. It is a 120mm black PWM case fan in the standard, non-reverse orientation, making it a fit for builders matching conventional airflow layouts. The listing does not specify the bearing type, airflow rating, or noise level, so performance comparisons require additional manufacturer details. Keep in mind that this model does not include a controller.

Pros & Cons

Triple-zone ARGB lighting offers more visual detail than a single lighting zone
Infinity mirror styling gives the fan a distinctive display-focused look
120mm size is widely used in PC cases
PWM functionality is included
Black non-reverse version is clearly identified in the listing

Controller is not included
Airflow, noise level, and bearing type are not specified in the provided listing
This is the standard orientation model, not a reverse fan

-5%

Lian Li UNI Fan SL Infinity 120mm

Fan Size 120MM

Bearing Type Fluid Dynamic Bearing

Airflow Not specified

Noise Level Not specified

~~$20.99~~ Save $1.00

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For builders who want a Lian Li 120mm case fan with a fluid dynamic bearing, the UNI Fan SL Infinity is a straightforward option in black. The listing identifies it as a single 120mm fan and confirms the bearing type, a design commonly associated with smoother long-term operation than basic sleeve bearings. Airflow and noise figures are not provided here, so it is difficult to compare its cooling output or acoustic performance against alternatives on paper. It makes the most sense for a build where the SL Infinity model and black finish are the priorities.

Pros & Cons

Confirmed 120mm case-fan size
Fluid dynamic bearing is explicitly listed
Black color offers an understated build-friendly look
Clear Lian Li UNI Fan SL Infinity model identification

The listing does not specify airflow performance
No noise-level rating is provided
No detailed feature list or technical specifications are included

Which Lian Li Fan Fits Your Build

I would narrow the choice by airflow path before focusing on RGB. A normal-blade and reverse-blade pair can keep the visible side facing outward where a case layout needs it. If your build uses a radiator, this overview of 360mm AIO liquid CPU coolers explains why pressure matters. Lian Li publishes ecosystem information that can help when planning lighting and control connections.

If you need a normal-blade 120mm option for demanding filtered mounts or radiator duty, I would go with the Lian Li TL Flex 120. Its LCP blades, narrow blade-to-frame gap, 90.1 CFM airflow, and 3.97mmH2O static pressure provide the clearest performance detail here.
For a display-focused build that still needs flexible control, I would point to the Lian Li SL-INF Flex 120. It offers multi-zone lighting, motherboard ARGB support, and PWM or L-Connect 3 speed control.
I would select the Lian Li Reverse SL Infinity when your intake layout specifically calls for a reverse-blade 120mm fan. Confirm the airflow direction before ordering so the visible side suits your case.

FAQs

Q: What is the difference between normal and reverse case fans?

A: Normal and reverse fan designs move air in opposite directions relative to the side that is visible in a build. Reverse-blade fans are useful when you want the cleaner-looking side facing into the case while preserving the intended intake or exhaust path. Always map your case airflow before choosing either style.

Q: Do these fans include a controller?

A: Not every listing includes one. The Lian Li TL Flex 120 and Lian Li SL-INF Flex 120 are specifically listed without a controller. Both support motherboard PWM and ARGB control options, but you should check your planned connections and preferred control method first.

Q: Should I use 120mm or 140mm case fans?

A: Choose the size your case supports at the mounting location. A 140mm fan can move air through a larger opening, while 120mm fans are common on radiators and tighter mounts. The Lian Li SL Infinity 140 is the relevant option here for a supported 140mm location.

Q: Are higher-static-pressure fans better for radiators?

A: Higher static pressure is generally more helpful when air must pass through a radiator or restrictive dust filter. The Lian Li TL Flex 120 lists both strong airflow and static-pressure specifications, making it a sensible place to start for those installations. Match the fan size to your radiator before buying.

Q: How can I keep a case fan setup quiet?

A: Use PWM control to set a fan curve that increases speed only as temperatures rise, and avoid blocking intake or exhaust paths. Fluid dynamic bearings are generally a good choice for quieter operation. For more cooling layout context, see our 120mm fan for CPU coolers guide.

Editor’s Verdict

For the Best Lian Li Case Fans, I would start with the Lian Li TL Flex 120 when airflow and pressure are priorities, especially for filtered mounts or radiators. Choose the Lian Li Reverse SL Infinity instead when a reverse-blade layout better suits the visible side of your intake.