Hardware Spec Index

Zephyra FN-3831 Ultra 120mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN3831-ULTRA · Released 2026 · Updated 2026-10-25

Key facts

Benchmark index1,004 (Case Fans scale)
Category rank#45,748
Street price$29
Power3 W
Performance per dollar34.62
Released2026

Specifications

BrandZephyra
ModelZephyra FN-3831 Ultra
Size120 × 120 × 25 mm
Speed500–2,200 RPM (PWM)
Airflow74.8 CFM
Static pressure2.42 mmH₂O
Noise28 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3831 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/5409631 (accessed 2026-10-25).