Hardware Spec Index

Corvane FN-4991 Ultra 140mm PWM Case Fan

Case Fans · Corvane · SKU FN4991-ULTRA · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index456 (Case Fans scale)
Category rank#43,918
Street price$19
Power3 W
Performance per dollar24.00
Released2023

Specifications

BrandCorvane
ModelCorvane FN-4991 Ultra
Size140 × 140 × 25 mm
Speed500–2,000 RPM (PWM)
Airflow96.0 CFM
Static pressure1.90 mmH₂O
Noise34 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Corvane FN-4991 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/6206544 (accessed 2026-10-19).