Hardware Spec Index

Brontix FN-3978 Pro 120mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3978-PRO · Released 2020 · Updated 2026-10-24

Key facts

Benchmark index1,175 (Case Fans scale)
Category rank#11,180
Street price$39
Power4 W
Performance per dollar30.13
Released2020

Specifications

BrandBrontix
ModelBrontix FN-3978 Pro
Size120 × 120 × 25 mm
Speed200–3,000 RPM (PWM)
Airflow102.0 CFM
Static pressure3.30 mmH₂O
Noise34 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Teralux FN-2289 Edge 140mm PWM ARGB Case Fan (3-Pack)1,097$39Compare
Corvane FN-7095 XT 120mm PWM ARGB Case Fan1,375$49Compare
Caldera FN-8132 Core 120mm PWM ARGB Case Fan (3-Pack)1,304$49Compare
Teralux FN-4716 Prime 120mm PWM Case Fan324$9Compare
Caldera FN-8928 XT 120mm PWM ARGB Case Fan974$29Compare
Caldera FN-3070 Edge 140mm PWM ARGB Case Fan946$29Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-3978 Pro 120mm PWM ARGB Case Fan”, https://vextor7.com/item/8239886 (accessed 2026-10-24).