Hardware Spec Index

Caldera FN-8640 Ultra 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN8640-ULTRA · Released 2026 · Updated 2026-10-21

Key facts

Benchmark index1,355 (Case Fans scale)
Category rank#17,045
Street price$49
Power4 W
Performance per dollar27.65
Released2026

Specifications

BrandCaldera
ModelCaldera FN-8640 Ultra
Size140 × 140 × 25 mm
Speed200–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise36 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-8640 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/91827270 (accessed 2026-10-21).