Hardware Spec Index

Caldera FN-3721 Prime 140mm PWM Case Fan

Case Fans · Caldera · SKU FN3721-PRIME · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index205 (Case Fans scale)
Category rank#49,276
Street price$9
Power4 W
Performance per dollar22.78
Released2019

Specifications

BrandCaldera
ModelCaldera FN-3721 Prime
Size140 × 140 × 25 mm
Speed400–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise22 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3721 Prime 140mm PWM Case Fan”, https://vextor7.com/item/3936870 (accessed 2026-10-21).