Hardware Spec Index

Zephyra FN-6491 Plus 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN6491-PLUS · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index396 (Case Fans scale)
Category rank#13,697
Street price$9
Power3 W
Performance per dollar44.00
Released2021

Specifications

BrandZephyra
ModelZephyra FN-6491 Plus
Size140 × 140 × 25 mm
Speed400–1,500 RPM (PWM)
Airflow72.0 CFM
Static pressure1.43 mmH₂O
Noise32 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-6491 Plus 140mm PWM Case Fan”, https://vextor7.com/item/29137968 (accessed 2026-10-24).