Hardware Spec Index

Caldera FN-5781 Prime 140mm PWM Case Fan

Case Fans · Caldera · SKU FN5781-PRIME · Released 2022 · Updated 2026-10-24

Key facts

Benchmark index268 (Case Fans scale)
Category rank#16,532
Street price$9
Power3 W
Performance per dollar29.78
Released2022

Specifications

BrandCaldera
ModelCaldera FN-5781 Prime
Size140 × 140 × 25 mm
Speed400–2,300 RPM (PWM)
Airflow110.4 CFM
Static pressure2.19 mmH₂O
Noise35 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-5781 Prime 140mm PWM Case Fan”, https://vextor7.com/item/5401964 (accessed 2026-10-24).