Hardware Spec Index

Caldera FN-5681 Pro 140mm PWM Case Fan

Case Fans · Caldera · SKU FN5681-PRO · Released 2026 · Updated 2026-10-25

Key facts

Benchmark index631 (Case Fans scale)
Category rank#47,322
Street price$19
Power3 W
Performance per dollar33.21
Released2026

Specifications

BrandCaldera
ModelCaldera FN-5681 Pro
Size140 × 140 × 25 mm
Speed300–2,000 RPM (PWM)
Airflow96.0 CFM
Static pressure1.90 mmH₂O
Noise24 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-5681 Pro 140mm PWM Case Fan”, https://vextor7.com/item/35305010 (accessed 2026-10-25).