Hardware Spec Index

Zephyra FN-2831 Ultra 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN2831-ULTRA · Released 2022 · Updated 2026-10-24

Key facts

Benchmark index560 (Case Fans scale)
Category rank#34,376
Street price$19
Power4 W
Performance per dollar29.47
Released2022

Specifications

BrandZephyra
ModelZephyra FN-2831 Ultra
Size140 × 140 × 25 mm
Speed400–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise24 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-2831 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/2204489 (accessed 2026-10-24).