Hardware Spec Index

Brontix FN-4121 XT 120mm PWM Case Fan

Case Fans · Brontix · SKU FN4121-XT · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index567 (Case Fans scale)
Category rank#11,084
Street price$19
Power3 W
Performance per dollar29.84
Released2019

Specifications

BrandBrontix
ModelBrontix FN-4121 XT
Size120 × 120 × 25 mm
Speed300–2,300 RPM (PWM)
Airflow78.2 CFM
Static pressure2.53 mmH₂O
Noise29 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4121 XT 120mm PWM Case Fan”, https://vextor7.com/item/7206701 (accessed 2026-10-20).