Hardware Spec Index

Caldera FN-4657 XT 140mm PWM Case Fan

Case Fans · Caldera · SKU FN4657-XT · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index619 (Case Fans scale)
Category rank#41,800
Street price$19
Power3 W
Performance per dollar32.58
Released2023

Specifications

BrandCaldera
ModelCaldera FN-4657 XT
Size140 × 140 × 25 mm
Speed300–1,800 RPM (PWM)
Airflow86.4 CFM
Static pressure1.71 mmH₂O
Noise36 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4657 XT 140mm PWM Case Fan”, https://vextor7.com/item/72043339 (accessed 2026-10-19).