Hardware Spec Index

Brontix FN-4978 Prime 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4978-PRIME · Released 2026 · Updated 2026-10-19

Key facts

Benchmark index515 (Case Fans scale)
Category rank#29,671
Street price$19
Power4 W
Performance per dollar27.11
Released2026

Specifications

BrandBrontix
ModelBrontix FN-4978 Prime
Size140 × 140 × 25 mm
Speed500–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise23 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4978 Prime 140mm PWM Case Fan”, https://vextor7.com/item/50002672 (accessed 2026-10-19).