Hardware Spec Index

Caldera FN-3421 Pro 140mm PWM Case Fan

Case Fans · Caldera · SKU FN3421-PRO · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index335 (Case Fans scale)
Category rank#14,435
Street price$19
Power4 W
Performance per dollar17.63
Released2020

Specifications

BrandCaldera
ModelCaldera FN-3421 Pro
Size140 × 140 × 25 mm
Speed400–3,000 RPM (PWM)
Airflow144.0 CFM
Static pressure2.85 mmH₂O
Noise23 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3421 Pro 140mm PWM Case Fan”, https://vextor7.com/item/95546933 (accessed 2026-10-22).