Hardware Spec Index

Caldera FN-5631 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN5631-ULTRA · Released 2025 · Updated 2026-10-19

Key facts

Benchmark index576 (Case Fans scale)
Category rank#40,927
Street price$19
Power4 W
Performance per dollar30.32
Released2025

Specifications

BrandCaldera
ModelCaldera FN-5631 Ultra
Size140 × 140 × 25 mm
Speed200–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise30 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-5631 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/409153 (accessed 2026-10-19).