Hardware Spec Index

Caldera FN-4991 Pro 120mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN4991-PRO · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index1,147 (Case Fans scale)
Category rank#47,135
Street price$39
Power3 W
Performance per dollar29.41
Released2020

Specifications

BrandCaldera
ModelCaldera FN-4991 Pro
Size120 × 120 × 25 mm
Speed300–1,700 RPM (PWM)
Airflow57.8 CFM
Static pressure1.87 mmH₂O
Noise29 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4991 Pro 120mm PWM ARGB Case Fan”, https://vextor7.com/item/8000616 (accessed 2026-10-19).