Hardware Spec Index

Caldera FN-1781 Prime 120mm PWM Case Fan

Case Fans · Caldera · SKU FN1781-PRIME · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index711 (Case Fans scale)
Category rank#5,025
Street price$19
Power3 W
Performance per dollar37.42
Released2023

Specifications

BrandCaldera
ModelCaldera FN-1781 Prime
Size120 × 120 × 25 mm
Speed400–1,800 RPM (PWM)
Airflow61.2 CFM
Static pressure1.98 mmH₂O
Noise31 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-1781 Prime 120mm PWM Case Fan”, https://vextor7.com/item/3948014 (accessed 2026-10-19).