Hardware Spec Index

Brontix FN-3731 Prime 120mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3731-PRIME · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index932 (Case Fans scale)
Category rank#31,648
Street price$29
Power2 W
Performance per dollar32.14
Released2025

Specifications

BrandBrontix
ModelBrontix FN-3731 Prime
Size120 × 120 × 25 mm
Speed300–1,400 RPM (PWM)
Airflow47.6 CFM
Static pressure1.54 mmH₂O
Noise22 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3731 Prime 120mm PWM ARGB Case Fan”, https://vextor7.com/item/9154384 (accessed 2026-10-26).