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Extended holiday returns
Returnable until Jan 31, 2027 Learn more
Returnable until Jan 31, 2027 Learn more
This item's return window has been extended for the holiday season: Returnable until Jan 31, 2027
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
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Availability:
In Stock.
Arrives
Saturday, Nov 14
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At a glance
- Condition
- New
- Color
- White
- Size
- 3 x 120mm
- Set
- Reverse Blade
- Model
- 12RSL1F3W
- Weight
- 1 lb
Features 5
- Controller Included. Please double-check the airflow direction and model type before purchase to avoid ordering the incorrect version.
- Features a re-designed infinity mirror side frame.
- ARGB Lighting Control: 5V 3-Pin ARGB Control Mode allows users to manage fan lighting via motherboard software while controlling fan speed through PWM or wireless options.
- Support flexible control options, allowing users to choose between motherboard PWM or L-Connect 3 control while maintaining wireless functionality and simplified cable management.
- Programmable RGB lighting enhances visual appeal and synchronizes perfectly with other Lian Li products.
Specs 4
| Product Dimensions | 5 x 4 x 6 inches |
|---|---|
| Item Weight | 1 pounds |
| Manufacturer | LIAN LI |
| Item model number | 12RSL1F3W |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Nov 14
Yes, absolutely! This item's return window has been extended for the holiday season: Returnable until Jan 31, 2027.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
10/10 easy installing and quick software setup
Color: Black
Size: 3 x 120mm
Set name: Reverse Blade
very accessible through bios or your motherboards software as some other fans tend to not be very accessible very well.
Reviewed in the United States on September 22, 2026 by Andrew Lara
They work great, good purchase
Color: White
Size: 3 x 120mm
Set name: Reverse Blade
Software is a bit tricky, the fans look great. Easy to install. No issues with wiring it up. They are quite. I will probably buy 2 more to have all my fans looks the same.
Reviewed in the United States on October 1, 2026 by SnarlingJoker64
Good quality fans, look very nice.
Color: Black
Size: 3 x 120mm
Set name: Normal Blade
Just to be up front about it, the only reason this is not 5 stars is because it's a bit overpriced. The Lian Li brand right now is hot and popular and they are using that reputation to make much higher profit margins. If you want Lian Li, for sure go for it, but if you just want nice looking, good quality fans, while these certainly qualify, you could do better for your money. Or, rather, you could do same quality for less money. The fans themselves look nice. I got the wireless "controller included" version. Setting up the wireless connectivity requires using a USB port on the back of the computer as well as using the Lian Li software on your system. I decided against using this method, as I would prefer to use my own software and have access to all of my USB ports. Thankfully, they are fully capable of connecting via PWM and ARGB 5050 motherboard headers, which is what i've used. As far as PWM performance, they seem to be... cranky? When connecting just one fan to my system PWM was detected correctly and the auto-tune for fan profiles worked great. (For reference, I'm on an ASUS ROG Crosshair Hero VIII) However, with all 3 fans connected together, PWM auto detect just went crazy and tried to default to minimum 80%. Made the fans running way too fast and very loud. I had to manually go in and disable PWM settings, use it as DC and manually configure a fan curve close enough to what I would like from PWM (though DC is never as good). If I had to guess, I would guess somewhere in the mid it's reporting 3x fan speeds and the motherboard is somehow interpreting that as one fan speed 3 times as fast and setting the speed accordingly. Not entirely sure. Not unfixable, but I double checked and updated my BIOS, there's no other way to fix this issue. The link system does make cable management great, but it doesn't always play nice with motherboards. To be clear, I have other fans more traditionally daisy-chained together and they don't have these issues. It's 100% something that is different about the link system compared to more traditional solutions. Still, even despite that, for the simplicity and clean look, I still prefer the link system. Just... getting it to work is not the best. But that's a one time headache for a permanent cable solution. As far as looks is concerned, they are awesome. The linking factor makes the side-line ARGB match up and they work great. I didn't completely plan out how to use these, and they ended up going into my personal system as intake. Which means I *should* have gone reverse blade, but I got standard. Still, the frames being visible is a very minimal detriment to the look. Overall still very happy with them, and I like how they look in my system.
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Reviewed in the United States on October 5, 2026 by Eagle River Electronics
Best computer fans
Color: White
Size: 3 x 120mm
Set name: Normal Blade
These are some of the best fans made for computers you can buy !!
Reviewed in the United States on August 27, 2026 by Edward J.
Lian li fans
Color: Black
Size: 1 x 120mm
Set name: Normal Blade
They look nice and they're quiet
Reviewed in the United States on August 24, 2026 by Cedric G.
Another quality Lian Li product!
Color: Black
Size: 3 x 120mm
Set name: Normal Blade
Lian Li at it again with a premium product! Gorgeous dual-zone infinity lighting, and the easiest modular install in the game. These Lian Li UNI FAN SL Flex 120mm fans are excellent. I have a total of 10 fans in my PC build and I couldn’t be happier! Build quality is top-tier. The frames feel solid and and well made, the rubberized corners do a good job of damping vibration, and the fluid dynamic bearings are smooth and quiet. Everything locks together cleanly with the classic UNI Fan interlocking system, no flex, and no cheap plastic feel. LED quality and brightness is where they shine (literally). Each fan has LEDs with dual-sided infinity mirror lighting and independently controllable zones. The lighting is bright, even, and vibrant without looking washed out or uneven. The infinity effect adds real depth from the sides and front, and the dual-zone control lets you create layered looks that stand out without being over-the-top. Colors stay true, brightness is adjustable, and effects in L-Connect 3 look polished. Motherboard 5V ARGB sync also works well if you prefer that route. Installation is one of the best parts of the UNI Fan ecosystem. Snap up to four fans together with the interlocking design and you only need one set of cables (via the FLEX receiver) for the whole group. Mounting to a case or radiator is standard screw work. The FLEX receiver supports both L-Connect 3 (with L-Wireless for broader Lian Li ecosystem control) and direct motherboard PWM + 5V ARGB, so you have flexibility depending on your preference. Triple packs include the wireless controller and extra cabling. They deliver solid balanced cooling. They’re quiet enough for daily use and ramp up smoothly when needed. Not the absolute highest-pressure radiator kings in the lineup, but more than capable as case fans or on mild radiators, and the noise-to-performance balance is good. They’re on the premium side price-wise, as expected from Lian Li, and the 28 mm thickness is something to keep in mind for tight clearances. The software, L-Connect 3, works well once set up. Like most RGB ecosystems it can take a minute the first time. Overall these are some of the nicest-looking, easiest-to-install ARGB fans available right now. High build quality, excellent and bright LED’s. Highly recommended.
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Reviewed in the United States on September 12, 2026 by vince
Very impressed with the design, quality, and engineering that went into these fans
Color: Black
Size: 3 x 120mm
Set name: Normal Blade
This 3 Pack of Lian Li UNI Fan SL Flex 120mm ARGB fans is the most technically impressive set of PC fan's I've worked with. Over the years, I've bought a lot of Noctua, Antec, and Be Quiet brand fans, all of which have served their purpose and worked well to cool my PCs. But these Lian Li fans have a bunch of really well engineered features that make them such a pleasure to use and look at. The first of these features is that the fans snap together with integrated brackets, with no tools needed. They can join into blocks of up to four fans. When they are attached to each other, the fans pass power and ARGB signals through built in spring loaded contacts from one to another, completely eliminating the need for a cable running to each fan. This alone makes them worth taking a good look at when designing a high end PC cooling setup. The second unique feature is that these fans can be fitted with the included wireless receiver, then controlled remotely via the included USB transmitter. This really cuts down on cable clutter. The only connection needed for the entire block of fans is a single power cable. If you don't want to use the wireless transmitter, a regular ARGB cable is included that attaches directly to the fans. At a mechanical level, these are listed as having a fluid dynamic bearing setup rather than sleeve bearings, so they should run well and stay quiet for a very long time. Airflow is good, and these fans run very quiet. I could not hear them in my somewhat noisy workshop up to almost their full speed of 2000RPM. The RGB lighting quality is very nice, with both front and side illumination. RGB lighting is not a huge feature to me, but it's very well done on these fans and will please users who want to set up color fades and patterns. Finally, when I pick up these fans they feel quite hefty compared to some others I've used. They seem really sturdy and well built, and are just beautifully designed. These are premium fans, and come at a premium price. In my opinion these are worth considering if you're building a top tier PC and want some extremely high quality fans with very unique features.
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Reviewed in the United States on August 31, 2026 by Tex
Excellent airflow, clean cable management, and impressive RGB lighting
Color: Black
Size: 3 x 120mm
Set name: Normal Blade
I installed this three pack in my desktop PC, and I was impressed by both the build quality and the overall design. The interlocking system makes cable management much cleaner than using individual fan cables, which helped simplify the entire installation. The included controller was easy to connect, and the ARGB lighting is bright, smooth, and evenly diffused without visible hot spots. It gives the system a clean, premium appearance while still allowing plenty of customization. Performance is equally impressive. The fans move a good amount of air while remaining relatively quiet during normal operation. They provided excellent airflow for my case, and I noticed stable temperatures even under heavier workloads. The frame feels solid, and the bearings operate smoothly with no unusual vibration or rattling after installation. Everything fit together well, and the overall quality is what I would expect from Lian Li. If you're building a new PC or upgrading your cooling system, these fans offer an excellent combination of performance, aesthetics, and easy installation. I would definitely recommend them to anyone looking for high-quality ARGB case fans.
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Reviewed in the United States on September 15, 2026 by Jose Dilan