Hardware Spec Index

Zephyra FN-3811 Ultra 120mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN3811-ULTRA · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index1,267 (Case Fans scale)
Category rank#37,273
Street price$49
Power2 W
Performance per dollar25.86
Released2023

Specifications

BrandZephyra
ModelZephyra FN-3811 Ultra
Size120 × 120 × 25 mm
Speed300–1,400 RPM (PWM)
Airflow47.6 CFM
Static pressure1.54 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3811 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/2090675 (accessed 2026-10-23).