Hardware Spec Index

Caldera FN-6421 Core 140mm PWM Case Fan

Case Fans · Caldera · SKU FN6421-CORE · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index747 (Case Fans scale)
Category rank#14,382
Street price$19
Power3 W
Performance per dollar39.32
Released2025

Specifications

BrandCaldera
ModelCaldera FN-6421 Core
Size140 × 140 × 25 mm
Speed500–2,400 RPM (PWM)
Airflow115.2 CFM
Static pressure2.28 mmH₂O
Noise29 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6421 Core 140mm PWM Case Fan”, https://vextor7.com/item/7008592 (accessed 2026-10-23).