Hardware Spec Index

Caldera FN-5977 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN5977-ULTRA · Released 2025 · Updated 2026-10-19

Key facts

Benchmark index816 (Case Fans scale)
Category rank#1,472
Street price$19
Power4 W
Performance per dollar42.95
Released2025

Specifications

BrandCaldera
ModelCaldera FN-5977 Ultra
Size140 × 140 × 25 mm
Speed500–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-5977 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/215997 (accessed 2026-10-19).