Hardware Spec Index

Brontix FN-8421 Ultra 140mm PWM ARGB Case Fan (3-Pack)

Case Fans · Brontix · SKU FN8421-ULTRA · Released 2026 · Updated 2026-10-22

Key facts

Benchmark index1,261 (Case Fans scale)
Category rank#22,699
Street price$49
Power4 W
Performance per dollar25.73
Released2026

Specifications

BrandBrontix
ModelBrontix FN-8421 Ultra
Size140 × 140 × 25 mm
Speed400–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise27 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-8421 Ultra 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/8400864 (accessed 2026-10-22).