Hardware Spec Index

Caldera FN-5891 Plus 140mm PWM Case Fan

Case Fans · Caldera · SKU FN5891-PLUS · Released 2023 · Updated 2026-10-26

Key facts

Benchmark index606 (Case Fans scale)
Category rank#13,301
Street price$19
Power4 W
Performance per dollar31.89
Released2023

Specifications

BrandCaldera
ModelCaldera FN-5891 Plus
Size140 × 140 × 25 mm
Speed400–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise36 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-5891 Plus 140mm PWM Case Fan”, https://vextor7.com/item/18599463 (accessed 2026-10-26).