Hardware Spec Index

Caldera FN-6661 Prime 140mm PWM Case Fan

Case Fans · Caldera · SKU FN6661-PRIME · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index513 (Case Fans scale)
Category rank#25,492
Street price$19
Power4 W
Performance per dollar27.00
Released2023

Specifications

BrandCaldera
ModelCaldera FN-6661 Prime
Size140 × 140 × 25 mm
Speed500–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise30 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6661 Prime 140mm PWM Case Fan”, https://vextor7.com/item/7659632 (accessed 2026-10-22).