Hardware Spec Index

Zephyra FN-3749 Prime 140mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN3749-PRIME · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index1,031 (Case Fans scale)
Category rank#45,619
Street price$39
Power3 W
Performance per dollar26.44
Released2025

Specifications

BrandZephyra
ModelZephyra FN-3749 Prime
Size140 × 140 × 25 mm
Speed300–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3749 Prime 140mm PWM ARGB Case Fan”, https://vextor7.com/item/5633945 (accessed 2026-10-24).