Hardware Spec Index

Zephyra FN-3691 Core 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN3691-CORE · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index350 (Case Fans scale)
Category rank#30,457
Street price$19
Power3 W
Performance per dollar18.42
Released2023

Specifications

BrandZephyra
ModelZephyra FN-3691 Core
Size140 × 140 × 25 mm
Speed300–2,100 RPM (PWM)
Airflow100.8 CFM
Static pressure2.00 mmH₂O
Noise30 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3691 Core 140mm PWM Case Fan”, https://vextor7.com/item/11047141 (accessed 2026-10-22).