Hardware Spec Index

Caldera FN-6840 Pro 140mm PWM Case Fan

Case Fans · Caldera · SKU FN6840-PRO · Released 2023 · Updated 2026-10-25

Key facts

Benchmark index319 (Case Fans scale)
Category rank#8,147
Street price$9
Power4 W
Performance per dollar35.44
Released2023

Specifications

BrandCaldera
ModelCaldera FN-6840 Pro
Size140 × 140 × 25 mm
Speed400–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise28 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6840 Pro 140mm PWM Case Fan”, https://vextor7.com/item/21757979 (accessed 2026-10-25).