Hardware Spec Index

Caldera FN-7657 Prime 140mm PWM Case Fan

Case Fans · Caldera · SKU FN7657-PRIME · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index599 (Case Fans scale)
Category rank#35,559
Street price$19
Power3 W
Performance per dollar31.53
Released2025

Specifications

BrandCaldera
ModelCaldera FN-7657 Prime
Size140 × 140 × 25 mm
Speed400–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise26 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-7657 Prime 140mm PWM Case Fan”, https://vextor7.com/item/4096340 (accessed 2026-10-24).