Hardware Spec Index

Caldera FN-6646 Prime 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN6646-PRIME · Released 2022 · Updated 2026-10-24

Key facts

Benchmark index1,288 (Case Fans scale)
Category rank#14,136
Street price$49
Power4 W
Performance per dollar26.29
Released2022

Specifications

BrandCaldera
ModelCaldera FN-6646 Prime
Size140 × 140 × 25 mm
Speed500–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise26 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-6646 Prime 140mm PWM ARGB Case Fan”, https://vextor7.com/item/73675828 (accessed 2026-10-24).