Hardware Spec Index

Caldera FN-4540 Prime 140mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN4540-PRIME · Released 2024 · Updated 2026-10-22

Key facts

Benchmark index758 (Case Fans scale)
Category rank#18,933
Street price$19
Power4 W
Performance per dollar39.89
Released2024

Specifications

BrandCaldera
ModelCaldera FN-4540 Prime
Size140 × 140 × 25 mm
Speed500–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise27 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4540 Prime 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/2436992 (accessed 2026-10-22).