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Black 120mm case fan with seven swept blades, reverse airflow frame and daisy-chain PWM cable

Fractal Design

Fractal Design Dynamic 3 FD-F-DY3-1202 120mm case fan

SKU CH-FKDK-ABW6R MPN FD-F-DY3-1202

120 mm case fan with reverse airflow, 350–2200 RPM PWM control, 65.38 CFM airflow and 36.2 dB(A) noise

  • Strong airflow with 65.38 CFM cooling performance
  • Quiet operation at 36.2 dB(A) noise level
  • Long-lasting rifle bearing rated 90000 hours MTTF
  • Wide PWM speed range from 350 to 2200 RPM
  • Daisy-chain cables simplify installation and reduce clutter

120mm reverse airflow case fan

The Fractal Design Dynamic 3 FD-F-DY3-1202 is a 120mm case fan built with a reverse airflow orientation. Its seven swept blades are designed to pull air through the frame in the opposite direction to a standard fan. This layout suits builders who want intake or exhaust positions that keep the clean side of the fan visible. The integrated daisy-chain cable lets multiple units share a single motherboard header.

Quiet operation at 36.2 dB(A)

A high-grade Rifle bearing rated for 90000 hours MTTF supports the motor, reducing friction for consistent long-term running. PWM control spans 350 to 2200 RPM, so the fan can idle near silence or spin up when temperatures rise. At typical speeds the unit moves up to 65.38 CFM while the acoustic output stays at 36.2 dB(A). The bearing design also helps maintain steady performance as dust accumulates.

2.54 mm H2O static pressure under load

When system load climbs and airflow meets resistance from filters or radiators, the fan develops up to 2.54 mm H2O of static pressure. The swept blade profile keeps air attached to the surface across the 350 to 2200 RPM range, preventing stall during sustained high-speed operation. This pressure headroom means the fan continues to feed cool air through dense obstacles without a sudden drop in flow.

Highlights

  • Strong airflow with 65.38 CFM cooling performance
  • Quiet operation at 36.2 dB(A) noise level
  • Long-lasting rifle bearing rated 90000 hours MTTF
  • Wide PWM speed range from 350 to 2200 RPM
  • Daisy-chain cables simplify installation and reduce clutter

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the FD-F-DY3-1202 and connect its daisy-chain cable without messing up the fan orientation?

Mount the 120mm frame with the four corner screws, then plug the 4-pin PWM connector into the motherboard header; the reverse airflow blades pull air from the motor side, so point that face toward the interior when using it as an exhaust fan.

What maintenance or replacement will the rifle bearing need over its 90000-hour MTTF rating?

The sealed rifle bearing is not user-serviceable; after the rated MTTF the fan should be replaced rather than lubricated.

At what point does the 2.54 mm H2O static pressure limit cooling performance during sustained high-load operation?

When airflow meets resistance above 2.54 mm H2O the fan cannot maintain its 65.38 CFM delivery, so dense radiators or restrictive filters become the bottleneck first.

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