Hardware Spec Index

Caldera FN-7781 Prime 140mm PWM Case Fan

Case Fans · Caldera · SKU FN7781-PRIME · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index488 (Case Fans scale)
Category rank#206
Street price$19
Power4 W
Performance per dollar25.68
Released2025

Specifications

BrandCaldera
ModelCaldera FN-7781 Prime
Size140 × 140 × 25 mm
Speed300–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise35 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-7781 Prime 140mm PWM Case Fan”, https://vextor7.com/item/10045554 (accessed 2026-10-20).