Hardware Spec Index

Caldera FN-4721 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN4721-ULTRA · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index427 (Case Fans scale)
Category rank#43,150
Street price$9
Power3 W
Performance per dollar47.44
Released2019

Specifications

BrandCaldera
ModelCaldera FN-4721 Ultra
Size140 × 140 × 25 mm
Speed200–1,500 RPM (PWM)
Airflow72.0 CFM
Static pressure1.43 mmH₂O
Noise22 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4721 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/7701616 (accessed 2026-10-20).