Hardware Spec Index

Zephyra FN-4681 Ultra 140mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN4681-ULTRA · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index1,197 (Case Fans scale)
Category rank#19,378
Street price$39
Power3 W
Performance per dollar30.69
Released2023

Specifications

BrandZephyra
ModelZephyra FN-4681 Ultra
Size140 × 140 × 25 mm
Speed400–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise30 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-4681 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/94557986 (accessed 2026-10-22).