Hardware Spec Index

Caldera FN-5891 Pro 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN5891-PRO · Released 2022 · Updated 2026-10-23

Key facts

Benchmark index1,081 (Case Fans scale)
Category rank#18,516
Street price$29
Power3 W
Performance per dollar37.28
Released2022

Specifications

BrandCaldera
ModelCaldera FN-5891 Pro
Size140 × 140 × 25 mm
Speed200–2,000 RPM (PWM)
Airflow96.0 CFM
Static pressure1.90 mmH₂O
Noise26 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-5891 Pro 140mm PWM ARGB Case Fan”, https://vextor7.com/item/44559872 (accessed 2026-10-23).