Hardware Spec Index

Caldera FN-6637 Plus 140mm PWM Case Fan

Case Fans · Caldera · SKU FN6637-PLUS · Released 2026 · Updated 2026-10-25

Key facts

Benchmark index321 (Case Fans scale)
Category rank#9,649
Street price$9
Power4 W
Performance per dollar35.67
Released2026

Specifications

BrandCaldera
ModelCaldera FN-6637 Plus
Size140 × 140 × 25 mm
Speed300–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise28 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6637 Plus 140mm PWM Case Fan”, https://vextor7.com/item/32934575 (accessed 2026-10-25).