Hardware Spec Index

Zephyra FN-3978 Prime 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN3978-PRIME · Released 2019 · Updated 2026-10-23

Key facts

Benchmark index257 (Case Fans scale)
Category rank#43,954
Street price$9
Power3 W
Performance per dollar28.56
Released2019

Specifications

BrandZephyra
ModelZephyra FN-3978 Prime
Size120 × 120 × 25 mm
Speed200–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise22 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Teralux FN-8124 Max 120mm PWM Case Fan318$9Compare
Brontix FN-7846 Plus 140mm PWM Case Fan324$9Compare
Caldera FN-1109 Core 120mm PWM Case Fan500$19Compare
Corvane FN-5489 Core 120mm PWM ARGB Case Fan (3-Pack)1,183$39Compare
Zephyra FN-3598 Ti 120mm PWM Case Fan533$19Compare
Brontix FN-3003 SE 120mm PWM ARGB Case Fan872$29Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-3978 Prime 120mm PWM Case Fan”, https://vextor7.com/item/18933693 (accessed 2026-10-23).