Hardware Spec Index

Brontix FN-4976 XT 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN4976-XT · Released 2019 · Updated 2026-10-25

Key facts

Benchmark index969 (Case Fans scale)
Category rank#25,360
Street price$39
Power3 W
Performance per dollar24.85
Released2019

Specifications

BrandBrontix
ModelBrontix FN-4976 XT
Size140 × 140 × 25 mm
Speed300–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise27 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-4976 XT 140mm PWM ARGB Case Fan”, https://vextor7.com/item/8522227 (accessed 2026-10-25).