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
Square 140mm case fan with black frame and translucent blades, PWM connector visible

Scythe

Scythe Kaze Flex 140mm PWM 300-1800RPM Case Fan

SKU CH-JCAJ-EFPH7

A 140 mm PWM case fan that spins from 300 to 1800 RPM for quiet cooling of cases and CPU heatsinks

  • TypeKeepsakes
  • Newly designed blades and frame deliver high airflow quietly
  • PWM control spans 300 to 1800 RPM for flexible cooling
  • Suited for case ventilation and CPU cooler heatsinks
  • 140 mm size fits standard mounting points

140 mm PWM fan for quiet case and CPU cooling

The Scythe Kaze Flex 140mm PWM fan uses a newly designed blade and frame to deliver high airflow while keeping noise low. It suits builders who want a single fan that works on a chassis intake or a CPU heatsink. PWM control lets the speed range from 300 to 1800 RPM for different thermal demands.

Wide speed range covers silent and performance needs

The 300 to 1800 RPM span means the fan can run near-silent at idle and ramp up for heavy loads without changing hardware. Buyers who need a fixed-speed or voltage-controlled fan should look elsewhere because this model relies on PWM signalling. Those who want multiple fans in one pack must buy separate units.

Highlights

  • Newly designed blades and frame deliver high airflow quietly
  • PWM control spans 300 to 1800 RPM for flexible cooling
  • Suited for case ventilation and CPU cooler heatsinks
  • 140 mm size fits standard mounting points

Specifications

TypeKeepsakes

Questions about this item

How does the 300-1800 RPM range affect airflow and noise inside a case?

The wide PWM range lets the fan spin slowly for near-silent idle operation and ramp up to 1800 RPM when the CPU or GPU needs maximum airflow through a radiator or heatsink.

What does the 140 mm PWM interface actually control in a typical build?

The 4-pin PWM header lets the motherboard adjust speed automatically based on temperature curves, so the fan only runs as fast as the cooling load requires.

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

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.