Hardware Spec Index

Caldera FN-9921 Ultra 120mm PWM Case Fan

Case Fans · Caldera · SKU FN9921-ULTRA · Released 2023 · Updated 2026-10-26

Key facts

Benchmark index345 (Case Fans scale)
Category rank#3,525
Street price$9
Power4 W
Performance per dollar38.33
Released2023

Specifications

BrandCaldera
ModelCaldera FN-9921 Ultra
Size120 × 120 × 25 mm
Speed200–3,000 RPM (PWM)
Airflow102.0 CFM
Static pressure3.30 mmH₂O
Noise30 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-9921 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/50351385 (accessed 2026-10-26).