2Pcs 40x40x20mm 12V 4Pin PWM Silent Computer Case Cooling Fan, EF40201B1Q01CS99 Replacement Fan 40mm 1.28W Mute Quiet Cooling Fan for PC Case Server Cooling System

This listing includes 2 pieces of 40mm silent PWM cooling fans, model compatible with EF40201B1Q01CS99, dimension 40x40x20mm, working at DC 12V with rated power 1.28W. Adopts standard 4Pin PWM connector to support motherboard automatic speed adjustment, you can switch fan speed according to realtime temperature, balance cooling performance and noise level.

Built with premium bearing structure, this 4cm case fan delivers steady airflow to dissipate heat efficiently, meanwhile keeps lownoise mute operation, will not bring disturbing noise during longtime running. Compact 40×40×20mm form factor fits narrow installation space, ideal replacement for PC small chassis, industrial equipment, server cabinet and other compact cooling devices.

Simple plugandplay installation without extra driver. Highquality fan frame ensures shock resistance and stable operation. These replacement fans are costeffective spare parts to replace wornout or broken original fans, help your hardware maintain proper working temperature and extend device service life. Each package contains two complete cooling fans for your equipment upgrade or maintenance.