Hardware Spec Index

Zephyra FN-4257 Pro 120mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN4257-PRO · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index844 (Case Fans scale)
Category rank#22,922
Street price$29
Power3 W
Performance per dollar29.10
Released2025

Specifications

BrandZephyra
ModelZephyra FN-4257 Pro
Size120 × 120 × 25 mm
Speed300–1,600 RPM (PWM)
Airflow54.4 CFM
Static pressure1.76 mmH₂O
Noise24 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4257 Pro 120mm PWM ARGB Case Fan”, https://vextor7.com/item/73315947 (accessed 2026-10-20).