Hardware Spec Index

Caldera FN-3966 Prime 120mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN3966-PRIME · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index628 (Case Fans scale)
Category rank#36,997
Street price$19
Power3 W
Performance per dollar33.05
Released2021

Specifications

BrandCaldera
ModelCaldera FN-3966 Prime
Size120 × 120 × 25 mm
Speed400–2,300 RPM (PWM)
Airflow78.2 CFM
Static pressure2.53 mmH₂O
Noise36 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Brontix FN-6570 SE 120mm PWM Case Fan271$9Compare
Caldera FN-6663 Pro 140mm PWM Case Fan (3-Pack)394$19Compare
Caldera FN-6889 SE 120mm PWM ARGB Case Fan993$39Compare
Corvane FN-3822 SE 120mm PWM Case Fan327$9Compare
Brontix FN-9643 Prime 140mm PWM ARGB Case Fan892$29Compare
Teralux FN-3570 Max 120mm PWM Case Fan283$9Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-3966 Prime 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/8489882 (accessed 2026-10-24).