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Black 140mm case fan with seven swept blades and daisy-chain PWM cable

Fractal Design

Fractal Design Dynamic 3 140mm PWM Case Fan FD-F-DY3-1401 350-1800 RPM

SKU CH-9DDE-RB2A7 MPN FD-F-DY3-1401

A 140 mm PWM case fan delivering 76.3 CFM airflow at 30.8 dB(A) with a 350-1800 RPM range and daisy-chain cable

  • Strong airflow up to 76.3 CFM from massive 7-blade swept design
  • Quiet operation at 30.8 dB(A) with high-grade Rifle bearing
  • Long-lasting dependability backed by 90,000-hour MTTF rating
  • Precise PWM control across 350 to 1800 RPM speed range
  • Cleaner builds via integrated daisy-chainable cables reducing clutter

140 mm PWM case fan for system builders

The Fractal Design Dynamic 3 140 mm PWM fan suits builders who need a single 140 mm unit with a wide speed range. It spins from 350 to 1800 RPM and moves up to 76.3 CFM at 30.8 dB(A). The 2.61 mm H2O static pressure helps push air through restrictive meshes or radiator fins.

Rifle bearing and daisy-chain cabling

A high-grade Rifle bearing rated at 90000-hour MTTF supports long-term continuous operation. The seven-blade swept design is built for consistent airflow delivery. Integrated daisy-chain cables let you link multiple fans on one header, reducing cable routing work and keeping the interior tidy.

PWM control range and single-fan scope

The 350 to 1800 RPM PWM range lets the motherboard balance cooling and noise automatically, but the curve is limited to this fan’s own endpoints. Buyers who need speeds below 350 RPM or above 1800 RPM must choose a different model. The package provides one fan, so configurations requiring multiple units will need additional purchases.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 90% of the 8,339 comparable items (median $19.99).

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Specifications

Size & build
Shipping weight0.23 kg
Package size160 × 140 × 30 mm

Questions about this item

What does the PWM interface cap the speed at?

PWM control lets the fan run between 350 and 1800 RPM, so the motherboard or controller sets the exact speed within that range.

What physical space does the 140mm frame need to mount?

The 140 mm square frame fits standard 140 mm mounting holes on cases or radiators; verify clearance for the fan body and the daisy-chain cable behind it.

How is the daisy-chain cable installed and what step is often missed?

Plug the first fan into the motherboard PWM header, then link each next fan to the previous one; the step often missed is setting the PWM curve in BIOS so all fans respond together.

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