Hardware Spec Index

Zephyra FN-6840 Ultra 120mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN6840-ULTRA · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index1,267 (Case Fans scale)
Category rank#19,674
Street price$39
Power4 W
Performance per dollar32.49
Released2019

Specifications

BrandZephyra
ModelZephyra FN-6840 Ultra
Size120 × 120 × 25 mm
Speed400–2,700 RPM (PWM)
Airflow91.8 CFM
Static pressure2.97 mmH₂O
Noise36 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-6840 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/21319215 (accessed 2026-10-20).