Hardware Spec Index

Zephyra FN-4578 Prime 120mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN4578-PRIME · Released 2021 · Updated 2026-10-26

Key facts

Benchmark index755 (Case Fans scale)
Category rank#47,826
Street price$19
Power3 W
Performance per dollar39.74
Released2021

Specifications

BrandZephyra
ModelZephyra FN-4578 Prime
Size120 × 120 × 25 mm
Speed500–1,800 RPM (PWM)
Airflow61.2 CFM
Static pressure1.98 mmH₂O
Noise35 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Teralux FN-2191 XT 140mm PWM ARGB Case Fan1,238$39Compare
Teralux FN-2058 XT 120mm PWM Case Fan445$19Compare
Caldera FN-5165 Ultra 120mm PWM Case Fan430$19Compare
Caldera FN-9343 Ti 120mm PWM Case Fan (3-Pack)708$19Compare
Zephyra FN-2642 Ultra 120mm PWM Case Fan681$19Compare
Caldera FN-9362 Prime 140mm PWM ARGB Case Fan (3-Pack)917$29Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-4578 Prime 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/8740513 (accessed 2026-10-26).