Hardware Spec Index

Zephyra FN-4957 Ultra 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN4957-ULTRA · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index218 (Case Fans scale)
Category rank#13,757
Street price$9
Power3 W
Performance per dollar24.22
Released2025

Specifications

BrandZephyra
ModelZephyra FN-4957 Ultra
Size120 × 120 × 25 mm
Speed200–1,800 RPM (PWM)
Airflow61.2 CFM
Static pressure1.98 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4957 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/64023760 (accessed 2026-10-26).