Hardware Spec Index

Zephyra FN-3900 Prime 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN3900-PRIME · Released 2024 · Updated 2026-10-19

Key facts

Benchmark index341 (Case Fans scale)
Category rank#31,379
Street price$19
Power4 W
Performance per dollar17.95
Released2024

Specifications

BrandZephyra
ModelZephyra FN-3900 Prime
Size140 × 140 × 25 mm
Speed300–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise22 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3900 Prime 140mm PWM Case Fan”, https://vextor7.com/item/2287487 (accessed 2026-10-19).