Hardware Spec Index

Zephyra FN-4635 Ultra 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN4635-ULTRA · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index456 (Case Fans scale)
Category rank#21,438
Street price$19
Power3 W
Performance per dollar24.00
Released2025

Specifications

BrandZephyra
ModelZephyra FN-4635 Ultra
Size120 × 120 × 25 mm
Speed400–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise33 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4635 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/4434864 (accessed 2026-10-20).