Hardware Spec Index

Caldera FN-5691 Ultra 120mm PWM Case Fan

Case Fans · Caldera · SKU FN5691-ULTRA · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index233 (Case Fans scale)
Category rank#30,177
Street price$9
Power3 W
Performance per dollar25.89
Released2021

Specifications

BrandCaldera
ModelCaldera FN-5691 Ultra
Size120 × 120 × 25 mm
Speed400–1,700 RPM (PWM)
Airflow57.8 CFM
Static pressure1.87 mmH₂O
Noise26 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-5691 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/20158712 (accessed 2026-10-21).