Hardware Spec Index

Caldera FN-9921 Pro 140mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN9921-PRO · Released 2024 · Updated 2026-10-21

Key facts

Benchmark index419 (Case Fans scale)
Category rank#40,226
Street price$19
Power3 W
Performance per dollar22.05
Released2024

Specifications

BrandCaldera
ModelCaldera FN-9921 Pro
Size140 × 140 × 25 mm
Speed400–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise35 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-9921 Pro 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/11616839 (accessed 2026-10-21).