Large case fans for PC cases and radiators, in 140 mm and bigger sizes, for builders who want to move the same air at a lower speed than a 120 mm fan needs. Our range of over 150 models covers airflow-focused and pressure-focused designs from Noctua, Phanteks, Lian Li, Arctic and Corsair, among others.
How to choose a large case fan
Size and mounting. Check that your case or radiator has 140 mm mounting positions before buying, because the hole spacing differs from 120 mm fans. Many cases accept both sizes in the same slot, but some only fit one, so look at the case specification first.
Airflow or static pressure. Airflow, measured in cfm or m³/h, matters for open front and rear case positions. Static pressure, measured in mmH2O, matters when the fan has to push air through a dust filter, a mesh panel or a radiator. In our range, listed maximum airflow runs from about 57 cfm to 110 cfm, and listed pressure from under 1 mmH2O to over 5 mmH2O, so the differences between models are large.
Speed and noise. Maximum speed in our range goes from around 1000 RPM to 2500 RPM. A fan rated at 1200 to 1500 RPM is usually the easier choice for a quiet desktop, while models that reach 2500 RPM suit builds where cooling matters more than noise. A fan that can slow down well at idle is worth more than a high top speed.
Connector and speed control. A 4-pin connector allows PWM speed control, so the motherboard can vary the speed smoothly. A 3-pin fan is controlled by voltage and offers less fine adjustment. Both types are listed in our range, and 4-pin is the more common of the two. Some listings show a 4-pin plus 4-pin connector, which usually means a second fan can be plugged into the first.
Bearing type. The bearing affects lifespan and noise over the years. Fluid dynamic bearings and rifle bearings are the most common types listed in our range, with hydraulic and dual ball bearings also present. Fluid dynamic designs are generally valued for low noise and long service life.
Brands of large fans we carry
- Noctua: an Austrian company known for low-noise fans, with the NF-A14 line a common reference for 140 mm cooling.
- Phanteks: a Dutch maker of cases and cooling parts, offering fans designed to work well on radiators and in mesh-front cases.
- Lian Li: known for the UNI FAN series, whose interlocking frames let several fans link together with less cabling.
- Arctic: known for fans that pair low noise with a simple design, including models with a connector for chaining fans together.
- Corsair: known for fans controlled through its iCUE software, with lighting and speed set from one program.
- be quiet: a German brand built around silence, best known for its Silent Wings series.
- Noiseblocker: a German manufacturer with a long record in quiet fans, including the eLoop series.
Also in our range: Jonsbo, Montech, Havn, Xilence and Tryx.
Large fans: frequently asked questions
Is a 140 mm fan better than a 120 mm fan?
A 140 mm fan can move the same amount of air at a lower speed, which usually means less noise. That advantage only applies if your case has 140 mm mounts. Where the case only accepts 120 mm fans, a good 120 mm model is the better fit.
Do I need a 4-pin or a 3-pin case fan?
A 4-pin fan is the better choice if your motherboard has PWM-capable headers, as it gives smoother speed control. A 3-pin fan still works on most boards, but it is regulated by voltage and usually has a narrower control range. Most 4-pin fans also work on 3-pin headers, though without PWM control.
What is the difference between airflow and static pressure?
Airflow describes how much air a fan moves in free space, while static pressure describes how well it pushes air against resistance. Choose higher static pressure for radiators, dense filters and restrictive grilles. Choose higher airflow for open case positions with little obstruction.
Which bearing type lasts longest in a case fan?
Fluid dynamic bearings are generally regarded as the longest-lasting and quietest of the common types. Rifle bearings are similar in principle and also aim for low noise and a long life. Hydraulic bearings are simpler, and lifespan depends on the individual fan design as much as on the bearing type.
