Hardware Spec Index

Zephyra FN-4791 Prime 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN4791-PRIME · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index424 (Case Fans scale)
Category rank#29,733
Street price$19
Power3 W
Performance per dollar22.32
Released2021

Specifications

BrandZephyra
ModelZephyra FN-4791 Prime
Size120 × 120 × 25 mm
Speed300–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise27 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4791 Prime 120mm PWM Case Fan”, https://vextor7.com/item/8397232 (accessed 2026-10-19).