Hardware Spec Index

Caldera FN-6421 Prime 140mm PWM Case Fan

Case Fans · Caldera · SKU FN6421-PRIME · Released 2025 · Updated 2026-10-22

Key facts

Benchmark index614 (Case Fans scale)
Category rank#1,126
Street price$19
Power3 W
Performance per dollar32.32
Released2025

Specifications

BrandCaldera
ModelCaldera FN-6421 Prime
Size140 × 140 × 25 mm
Speed300–1,800 RPM (PWM)
Airflow86.4 CFM
Static pressure1.71 mmH₂O
Noise23 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6421 Prime 140mm PWM Case Fan”, https://vextor7.com/item/7940690 (accessed 2026-10-22).