We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

PC Case and Radiator Cooling Fans

Case, radiator and cooler fans from 40 to 140 mm, with 3-pin DC or 4-pin PWM connectors, and plain, RGB or addressable RGB lighting. 8,339 products from $0.83 to $84,158.99. Fans, Zyvpee, SXDOOL and more.

8,339 products from $0.83

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

8,339 results · page 1 of 139

Sort: Featured

Size, thickness and connectors that must match

Fan size is the frame width: 120 mm and 140 mm are the common case sizes, with 80, 92, 60 and 40 mm for smaller bays and coolers. The mounting holes differ between sizes, so a 140 mm fan will not bolt into a 120 mm slot unless the case offers dual-size slots. Standard thickness is 25 mm, while 30 mm fans add pressure but can foul a radiator or a tight panel. The connector sets control: 3-pin fans vary speed with voltage, 4-pin PWM fans take a separate signal, and 2-pin fans run at a fixed speed from a power plug.

Airflow, pressure, noise and bearings

Airflow, in CFM, shows how much air a fan moves in open space; static pressure shows how well it pushes through resistance such as a radiator, dense heatsink or dust filter. Case intake and exhaust favor airflow, while radiators and filters favor pressure. Noise is quoted in dBA at full speed, so a lower maximum RPM usually means a quieter fan. Bearing type affects life and sound: sleeve and hydraulic are quiet when new, ball bearings last longer but can be noisier, and fluid dynamic bearings aim for both. Small 40 and 60 mm fans spin much faster and louder.

Questions about PC Case and Radiator Cooling Fans

Which way should case fans face?
Most frames show an arrow for airflow direction. Place front and bottom fans as intake, and rear and top fans as exhaust, so cool air enters low and warm air leaves high and behind the board.
What is the difference between 3-pin and 4-pin fans?
A 3-pin fan changes speed by voltage control, while a 4-pin PWM fan receives a separate speed signal and holds steadier low speeds. Most boards run 3-pin fans on 4-pin headers, but PWM control then falls back to voltage mode.
Can a 140 mm fan go where a 120 mm fan goes?
Only if the mount supports both. Hole spacing differs between the sizes, so a case slot marked 120/140 mm accepts either, while a plain 120 mm mount does not accept a 140 mm fan. Check the case specification.