Hardware Spec Index

Caldera FN-6840 Ultra 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN6840-ULTRA · Released 2019 · Updated 2026-10-26

Key facts

Benchmark index1,372 (Case Fans scale)
Category rank#738
Street price$49
Power3 W
Performance per dollar28.00
Released2019

Specifications

BrandCaldera
ModelCaldera FN-6840 Ultra
Size140 × 140 × 25 mm
Speed500–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise24 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6840 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/6892707 (accessed 2026-10-26).