Hardware Spec Index

Caldera FN-8640 Prime 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN8640-PRIME · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index798 (Case Fans scale)
Category rank#11,339
Street price$29
Power4 W
Performance per dollar27.52
Released2023

Specifications

BrandCaldera
ModelCaldera FN-8640 Prime
Size140 × 140 × 25 mm
Speed400–3,000 RPM (PWM)
Airflow144.0 CFM
Static pressure2.85 mmH₂O
Noise36 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-8640 Prime 140mm PWM ARGB Case Fan”, https://vextor7.com/item/512700 (accessed 2026-10-19).