Hardware Spec Index

Zephyra FN-3905 Ultra 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN3905-ULTRA · Released 2020 · Updated 2026-10-24

Key facts

Benchmark index690 (Case Fans scale)
Category rank#42,893
Street price$19
Power3 W
Performance per dollar36.32
Released2020

Specifications

BrandZephyra
ModelZephyra FN-3905 Ultra
Size120 × 120 × 25 mm
Speed400–2,200 RPM (PWM)
Airflow74.8 CFM
Static pressure2.42 mmH₂O
Noise25 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Corvane FN-9621 Ultra 140mm PWM Case Fan452$19Compare
Corvane FN-8638 Core 120mm PWM Case Fan (3-Pack)481$19Compare
Brontix FN-3082 Plus 120mm PWM ARGB Case Fan1,092$29Compare
Teralux FN-4511 Ti 120mm PWM Case Fan561$19Compare
Zephyra FN-2296 Ultra 120mm PWM ARGB Case Fan1,332$49Compare
Teralux FN-9531 Ti 120mm PWM ARGB Case Fan965$29Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-3905 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/8174458 (accessed 2026-10-24).