Hardware Spec Index

Caldera FN-3680 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN3680-ULTRA · Released 2026 · Updated 2026-10-26

Key facts

Benchmark index344 (Case Fans scale)
Category rank#7,312
Street price$9
Power3 W
Performance per dollar38.22
Released2026

Specifications

BrandCaldera
ModelCaldera FN-3680 Ultra
Size140 × 140 × 25 mm
Speed400–1,800 RPM (PWM)
Airflow86.4 CFM
Static pressure1.71 mmH₂O
Noise27 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3680 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/9344722 (accessed 2026-10-26).