Hardware Spec Index

Brontix FN-4821 Ultra 120mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN4821-ULTRA · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index1,244 (Case Fans scale)
Category rank#31,640
Street price$39
Power3 W
Performance per dollar31.90
Released2025

Specifications

BrandBrontix
ModelBrontix FN-4821 Ultra
Size120 × 120 × 25 mm
Speed200–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise26 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4821 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/21532509 (accessed 2026-10-26).