Hardware Spec Index

Zephyra FN-4391 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN4391-ULTRA · Released 2024 · Updated 2026-10-18

Key facts

Benchmark index238 (Case Fans scale)
Category rank#21,623
Street price$9
Power4 W
Performance per dollar26.44
Released2024

Specifications

BrandZephyra
ModelZephyra FN-4391 Ultra
Size120 × 120 × 25 mm
Speed500–2,900 RPM (PWM)
Airflow98.6 CFM
Static pressure3.19 mmH₂O
Noise30 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Zephyra FN-1928 Core 140mm PWM Case Fan (3-Pack)740$19Compare
Teralux FN-6760 Plus 120mm PWM ARGB Case Fan (3-Pack)1,135$39Compare
Brontix FN-8264 SE 140mm PWM Case Fan598$19Compare
Corvane FN-6660 Pro 120mm PWM Case Fan323$9Compare
Brontix FN-8529 Edge 140mm PWM ARGB Case Fan (3-Pack)934$29Compare
Caldera FN-4004 Ultra 120mm PWM ARGB Case Fan1,131$29Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-4391 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/17522816 (accessed 2026-10-18).