Hardware Spec Index

Caldera FN-4657 Max 140mm PWM Case Fan

Case Fans · Caldera · SKU FN4657-MAX · Released 2023 · Updated 2026-10-25

Key facts

Benchmark index266 (Case Fans scale)
Category rank#16,796
Street price$9
Power3 W
Performance per dollar29.56
Released2023

Specifications

BrandCaldera
ModelCaldera FN-4657 Max
Size140 × 140 × 25 mm
Speed200–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise31 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4657 Max 140mm PWM Case Fan”, https://vextor7.com/item/7226262 (accessed 2026-10-25).