Hardware Spec Index

Zephyra FN-3939 XT 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN3939-XT · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index731 (Case Fans scale)
Category rank#1,438
Street price$19
Power4 W
Performance per dollar38.47
Released2021

Specifications

BrandZephyra
ModelZephyra FN-3939 XT
Size120 × 120 × 25 mm
Speed300–2,900 RPM (PWM)
Airflow98.6 CFM
Static pressure3.19 mmH₂O
Noise35 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Brontix FN-7572 Ultra 120mm PWM Case Fan515$19Compare
Corvane FN-4915 Max 120mm PWM ARGB Case Fan1,246$49Compare
Corvane FN-2880 Max 120mm PWM ARGB Case Fan1,389$49Compare
Zephyra FN-8346 Ti 140mm PWM ARGB Case Fan1,253$39Compare
Caldera FN-1457 Plus 120mm PWM Case Fan (3-Pack)565$19Compare
Brontix FN-3090 Ultra 140mm PWM Case Fan (3-Pack)548$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-3939 XT 120mm PWM Case Fan”, https://vextor7.com/item/28020893 (accessed 2026-10-23).