The noise row never names a speed
Each fan version gets one row, labeled "ACOUSTIC NOISE" or "NOISE LEVEL", in dB(A) or dBA. It sits a few lines below "FAN SPEED", which gives a range such as "0, 350~1900 RPM". Some tables add "Max" or "(Maximum)" to the figure, while the newer FLEX tables print the bare number. This page takes every figure to describe the fan at the top of its speed range.
There is no microphone distance and no test standard. A 26 next to a 29 tells you something within Lian Li; a 26 next to another maker's 26 tells you little, since decibel ratings from different setups rarely line up. Older pages write "dB(A)" and newer ones "dBA". Each page's spelling is kept, and the two count as the same unit.
What is the quietest Lian Li 120mm fan?
The TL LCD FLEX 120, at 26 dBA with standard blades. The highest standard blade figure is 33 dBA, on the 2600 RPM TL 120.
| Standard blade 120mm fan | Noise | Top speed | Airflow | Static pressure |
|---|
| TL LCD FLEX 120 | 26 dBA | 1900 RPM | 66 CFM | 2.7 mmH2O |
| TL LCD 120 and TL120 LCD Wireless | 27 | 1900 RPM | 62 CFM | 2.9 mmH2O |
| AL120 V2 | 28.7 dB(A) | 2000 RPM | 77.3 CFM | 2.97 mmH2O |
| SL-INF 120, the wired version | 29 dB(A) | 2100 RPM | 61.3 CFM | 2.66 mmH2O |
| SL FLEX 120 | 29 dBA | 2000 RPM | 66.5 CFM | 2.5 mmH2O |
| SL-INF Wireless 120 and SL-INF FLEX | 29.2 dBA | 2300 RPM | 67 CFM | 3.4 mmH2O |
| SL V2 120 | 29.2 dB(A) | 2000 RPM | 64.5 CFM | 2.59 mmH2O |
| SL Wireless LCD 120 | 29.5 dBA | 1900 RPM | 58.08 CFM | 2.4 mmH2O |
| SL-INF LCD FLEX | 29.5 dBA | 2000 RPM | 59.2 CFM | 2.34 mmH2O |
| CL Wireless and CL FLEX 120 | 29.8 dBA | 2150 and 2100 RPM | 77.34 CFM | 2.52 mmH2O |
| SL Wireless 120 | 32 dB(A) | 2000 RPM | 65.4 CFM | 2.19 mmH2O |
| P28 | 32.1 dB(A) | 2600 RPM | 92 CFM | 4.79 mmH2O |
| TL 120, TL 120 Wireless and TL FLEX | 33 | 2600 RPM | 90.1 CFM | 3.97 mmH2O |
The two lowest figures belong to the two slowest fans. That holds across the whole table. All but the wired SL-INF 120 are 28mm thick; that one is 25mm.
Which Lian Li 140mm fan is quietest?
The AL140 V2, at 26.8 dB(A) and 1600 RPM, with the SL-INF Wireless 140 next at 27.7 dBA.
| Standard blade 140mm fan | Noise | Top speed | Airflow | Static pressure |
|---|
| AL140 V2 | 26.8 dB(A) | 1600 RPM | 81.6 CFM | 2.80 mmH2O |
| SL-INF Wireless 140 | 27.7 dBA | 1800 RPM | 77.6 CFM | 3.45 mmH2O |
| SL-INF 140 | 28 dB(A) | 1600 RPM | 72.7 CFM | 2.88 mmH2O |
| TL LCD 140 and TL140 LCD Wireless | 28.5 | 1600 RPM | 68.1 CFM | 3.5 mmH2O |
| SL V2 140 | 29 dB(A) | 1600 RPM | 77.6 CFM | 2.09 mmH2O |
| TL 140 and TL140 Wireless | 29 | 1800 RPM | 103.9 CFM | 2.34 mmH2O |
The 140s sit in a tighter band than the 120s, 26.8 to 29, partly because none of them spins past 1800 RPM. At the same 29 as the SL V2 140, the TL 140 moves 103.9 CFM, the most air of any UNI FAN. The AL140 V2, SL V2 140 and wired SL-INF 140 are 25mm thick; the SL-INF Wireless 140 and the TL 140s are 28mm.
Reverse blades cost 0.6 to 4 dB(A), with one exception
Most UNI FANs come with normal and reverse blades, a pairing the TL page says is there to "Meet all kinds of configuration needs". In every pair but one, the reverse blade version prints the higher figure.
| Reverse blade 120mm fan | Noise | Airflow |
|---|
| TL LCD FLEX 120 reverse | 29 dBA | 63 CFM |
| CL FLEX 120 reverse and CL Wireless reverse | 30.8 dBA | 72.73 CFM |
| TL LCD 120 reverse and TL120 LCD reverse Wireless | 31 | 54.3 CFM |
| SL FLEX 120 reverse | 31 dBA | 65 CFM |
| SL-INF FLEX reverse | 31 dBA | 65.7 CFM |
| SL-INF LCD FLEX reverse | 31 dBA | 56.89 CFM |
| SL Wireless LCD 120 reverse | 31 dBA | 51.45 CFM |
| SL Wireless 120 reverse | 31 dB(A) | 69.5 CFM |
| SL120 V2 reverse and SL-INF 120 reverse | 32 dB(A) | 64.5 and 63.6 CFM |
| SL-INF Wireless 120 reversed blade | 32.2 dBA | 69.7 CFM |
| TL 120 reverse, TL FLEX reverse and TL 120 reverse Wireless | 34 | 83.4 CFM |
At 140mm the reverse versions read 28.6 for the SL-INF 140 reverse and SL-INF Wireless 140 reverse, 29.4 for the TL LCD 140 reverse and its wireless twin, and 31 for the TL 140 reverse and TL Wireless 140 reverse.
The gap runs from 0.6 dB(A) on the SL-INF 140 to 4 on the TL LCD 120. The exception is the SL Wireless 120: 32 dB(A) with standard blades, 31 with reverse ones.
How loud is a Lian Li AIO pump?
From 16.59 dBA on the Galahad II Trinity to 32.1 on the Galahad II LCD, on a pump row kept apart from the fans.
| Cooler | Pump noise | Pump speed |
|---|
| Galahad II Trinity 360 and 240, and Trinity SL-INF 360 and 240 | 16.59 dBA | 3200 RPM |
| Trinity Performance 360 | 22.03 dBA | 4200 RPM |
| HydroShift II LCD-C 360TL, 360CL and 360N | 28dBA | 2000 to 2500 RPM |
| Galahad II LCD 360, 280, SL-INF 360 and TL Wireless 280 | 32.1 dBA | up to 3600 RPM, Asetek 8th and 8.5th gen pumps |
Two current coolers print a ceiling instead, quoted here but not ranked: the HydroShift II LCD-S 360, "≤28dBA" at 1600 to 3200 RPM, and the HydroShift II OLED Curved 360, "< 30.0 dBA (Max)" at 1600 to 2800 RPM. The first HydroShift LCD 360 and the GA II Lite print no pump figure at all, and no pump row names a distance, standard or pump setting.
Cooler fans list 26.7 to 38.1 dB(A)
Several match the UNI FAN they are based on, such as 29 for the SL-INF versions. Coolers with 120mm fans, lowest fan figure first:
| Fan noise | Coolers |
|---|
| 29 dB(A) | Galahad II LCD SL-INF 360; Galahad II Trinity SL-INF 360 and 240; Trinity Performance in L mode |
| 29.8 | GA II Lite Performance (GA2L36PB, GA2L24PB), on FDB fans; HydroShift LCD 360S |
| 30 | Galahad II LCD 360; Galahad II Trinity 360 and 240; HydroShift LCD 360R; HydroShift II LCD-S 360 CL |
| 31 dBA | HydroShift II LCD-C 360CL |
| 33 | HydroShift II LCD-C 360TL; HydroShift II LCD-S 360 TL; HydroShift II OLED Curved 360TL; HydroShift LCD 360TL |
| 34.8 dBA | GA II Lite RGB version (GA2L36RB, GA2L24RB), on hydraulic bearing fans |
| 38.1 | Trinity Performance in H mode; HydroShift II OLED Curved 360P28 |
Two coolers use 140mm fans: the Galahad II LCD 280, 26.7 dB(A) at 1550 RPM, and the Galahad II LCD TL Wireless 280, 29 dB(A) at 1800 RPM. Fanless versions of the HydroShift, HydroShift II and OLED Curved print no fan figure. No figure covers the cooler as a whole. Other makers' liquid coolers, some with whole-cooler figures, are in our AIO cooler guide.
The UNI FAN P28 is the only UNI FAN with figures at more than one speed. Its included controller has three modes, and each sets the top speed.
| P28 mode | Noise | Top speed | Airflow | Static pressure |
|---|
| L (Silent) | 20.4 dB(A) | 1300 RPM | 44.94 CFM | 1.3 mmH2O |
| M (Normal) | 28.1 dB(A) | 2200 RPM | 77.76 CFM | 3.62 mmH2O |
| H (Performance) | 32.1 dB(A) | 2600 RPM | 92 CFM | 4.79 mmH2O |
That 20.4 in L mode is lower than any UNI FAN's maximum, but it belongs to a capped fan, and its 1.3 mmH2O is well under the 2.7 of the TL LCD FLEX 120. The Trinity Performance's two fan figures follow the same L and H idea.
Older models still online
Five older products keep pages with figures but are missing from the UNI FAN and AIO category listings: the first UNI FAN SL and AL, the ST120, and both first-generation Galahad AIOs. None is marked discontinued. They are treated as older models and not ranked.
| Older model | Printed figure |
|---|
| UNI FAN SL 120 and SL 140 | "31dB(A) Max" and "30dB(A) Max" |
| UNI FAN AL 120 | "17 ~ 28.3 dB", a range rather than a single figure |
| ST120 | "32.0dB(A)" |
| Galahad AIO 240 and 360 | fan "32.dBA", pump "< 20 dBA" |
| Galahad AIO UNI FAN SL Edition | fan "31dB(A) Max", pump "< 20 dBA" |
Slips in the spec tables
The most visible is on the Galahad II LCD, whose bearing row repeats the noise figures.
| Page | Slip |
|---|
| Galahad II LCD 360 and 280 | the "BEARING TYPE" row reads "30 dB(A)" and "26.7 dB(A)", the same as the noise row above it |
| Galahad II Trinity Performance | the H mode figure reads "38.1 dB(A))", with a stray bracket |
| Galahad AIO SL Edition | two noise rows for one fan, "NOISE 32.dB" and "FAN ACOUSTICAL NOISE 31dB(A) Max", beside a "UMP NOISE LEVEL" row |
| TL 140 reverse | the wired page lists 101.6 CFM, the wireless page 103.9 CFM, at the same 1800 RPM and 31 |
| HydroShift II LCD-C | static pressure as "3.97 H2o", with no "mm" |
None of these changes a figure ranked here.
The Galahad II LCD one is still the slip a reader is most likely to trip over, because it puts a noise figure where a bearing type should be and invites a misread of the whole table.
How much do Lian Li fans cost?
lian-li.com shows no prices, so this page prints none and the buttons open each fan's current listing.
US buyers are sent by the Where to buy page to retailers including Micro Center, Newegg, B&H, Best Buy and Performance-pcs, and it lists "United States - Amazon lian li direct" with a link to the amazon.com seller page. Prices for the same fan differ between single packs, triple packs with a controller, and colors.
The LANCOOL cases, which ship with fans fitted, are compared in our PC case guide. For what 26 or 33 dB(A) means in a room, see our decibel chart.
