Hardware Spec Index

Zephyra FN-4757 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN4757-ULTRA · Released 2024 · Updated 2026-10-25

Key facts

Benchmark index499 (Case Fans scale)
Category rank#829
Street price$19
Power4 W
Performance per dollar26.26
Released2024

Specifications

BrandZephyra
ModelZephyra FN-4757 Ultra
Size120 × 120 × 25 mm
Speed300–2,600 RPM (PWM)
Airflow88.4 CFM
Static pressure2.86 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4757 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/721314 (accessed 2026-10-25).