Hardware Spec Index

Zephyra FN-4540 Pro 120mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN4540-PRO · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index498 (Case Fans scale)
Category rank#9,078
Street price$19
Power3 W
Performance per dollar26.21
Released2019

Specifications

BrandZephyra
ModelZephyra FN-4540 Pro
Size120 × 120 × 25 mm
Speed500–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise24 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4540 Pro 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/531889 (accessed 2026-10-21).