Hardware Spec Index

Zephyra FN-3639 Ultra 120mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN3639-ULTRA · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index993 (Case Fans scale)
Category rank#37,502
Street price$29
Power4 W
Performance per dollar34.24
Released2021

Specifications

BrandZephyra
ModelZephyra FN-3639 Ultra
Size120 × 120 × 25 mm
Speed300–2,700 RPM (PWM)
Airflow91.8 CFM
Static pressure2.97 mmH₂O
Noise32 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Zephyra FN-1972 Core 140mm PWM ARGB Case Fan1,080$39Compare
Corvane FN-4547 Core 140mm PWM ARGB Case Fan1,029$39Compare
Teralux FN-1032 XT 120mm PWM Case Fan276$9Compare
Caldera FN-9698 Prime 120mm PWM ARGB Case Fan1,122$29Compare
Corvane FN-6476 SE 140mm PWM ARGB Case Fan (3-Pack)1,089$39Compare
Zephyra FN-1338 SE 140mm PWM Case Fan543$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-3639 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/50004372 (accessed 2026-10-19).