Hardware Spec Index

Caldera FN-1891 Prime 140mm PWM Case Fan

Case Fans · Caldera · SKU FN1891-PRIME · Released 2020 · Updated 2026-10-26

Key facts

Benchmark index577 (Case Fans scale)
Category rank#39,622
Street price$19
Power3 W
Performance per dollar30.37
Released2020

Specifications

BrandCaldera
ModelCaldera FN-1891 Prime
Size140 × 140 × 25 mm
Speed300–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise26 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-1891 Prime 140mm PWM Case Fan”, https://vextor7.com/item/4573226 (accessed 2026-10-26).