Hardware Spec Index

Zephyra FN-3731 Ultra 120mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN3731-ULTRA · Released 2020 · Updated 2026-10-21

Key facts

Benchmark index998 (Case Fans scale)
Category rank#42,949
Street price$39
Power3 W
Performance per dollar25.59
Released2020

Specifications

BrandZephyra
ModelZephyra FN-3731 Ultra
Size120 × 120 × 25 mm
Speed500–2,400 RPM (PWM)
Airflow81.6 CFM
Static pressure2.64 mmH₂O
Noise24 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Zephyra FN-2672 Core 120mm PWM Case Fan (3-Pack)421$19Compare
Teralux FN-3102 Pro 120mm PWM Case Fan262$9Compare
Teralux FN-2569 Prime 140mm PWM Case Fan786$19Compare
Teralux FN-4600 Core 120mm PWM ARGB Case Fan1,212$39Compare
Zephyra FN-7486 Pro 120mm PWM ARGB Case Fan (3-Pack)893$29Compare
Zephyra FN-5953 Ti 140mm PWM ARGB Case Fan1,293$49Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-3731 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/3754628 (accessed 2026-10-21).