Hardware Spec Index

Brontix FN-4638 Prime 120mm PWM Case Fan

Case Fans · Brontix · SKU FN4638-PRIME · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index709 (Case Fans scale)
Category rank#13,357
Street price$19
Power3 W
Performance per dollar37.32
Released2022

Specifications

BrandBrontix
ModelBrontix FN-4638 Prime
Size120 × 120 × 25 mm
Speed500–1,500 RPM (PWM)
Airflow51.0 CFM
Static pressure1.65 mmH₂O
Noise29 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4638 Prime 120mm PWM Case Fan”, https://vextor7.com/item/3479933 (accessed 2026-10-21).