PANO-MOUNTS 2412038PWM2PACK 24V 120mm 38mm 2-Pack PWM Case Fan

Two-pack 24 V 120 mm PWM fans

This two-pack supplies a pair of 120 mm by 38 mm case fans that run on 24 V DC and connect via standard 4-pin PWM headers. Each unit uses dual ball bearings rated for up to 100000 hours and includes a metal guard grill plus mounting screws. They are aimed at builders who need high static pressure for radiators, mining rigs or industrial enclosures.

Sustained-load airflow and speed range

Under continuous load the fans spin between 3000 and 5000 RPM, delivering up to 174.9 CFM and 21.8 mm H2O of static pressure. The PWM curve lets the motherboard or a sensor automatically raise speed when component temperatures climb and drop it again when the load eases. This behaviour keeps airflow matched to thermal demand rather than running at a fixed maximum.

Thermals, noise and power draw

At full speed the pair draws 0.8 A each at 24 V and produces 58 to 62 dBA of acoustic noise. The 50 cm cable allows flexible routing inside larger chassis. Dual ball bearings maintain consistent speed and lower friction over long periods, helping the fans sustain their rated airflow without the thermal throttling or bearing wear common in sleeve-bearing designs.