Hardware Spec Index

Caldera FN-6639 Prime 120mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN6639-PRIME · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index653 (Case Fans scale)
Category rank#49,584
Street price$19
Power2 W
Performance per dollar34.37
Released2023

Specifications

BrandCaldera
ModelCaldera FN-6639 Prime
Size120 × 120 × 25 mm
Speed200–1,400 RPM (PWM)
Airflow47.6 CFM
Static pressure1.54 mmH₂O
Noise23 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6639 Prime 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/82884416 (accessed 2026-10-23).