Hardware Spec Index

Brontix FN-8640 Ultra 120mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN8640-ULTRA · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index928 (Case Fans scale)
Category rank#4,592
Street price$29
Power3 W
Performance per dollar32.00
Released2019

Specifications

BrandBrontix
ModelBrontix FN-8640 Ultra
Size120 × 120 × 25 mm
Speed400–2,200 RPM (PWM)
Airflow74.8 CFM
Static pressure2.42 mmH₂O
Noise22 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Corvane FN-5447 Max 120mm PWM Case Fan711$19Compare
Corvane FN-8789 Ultra 120mm PWM Case Fan679$19Compare
Zephyra FN-1112 Edge 120mm PWM Case Fan454$19Compare
Teralux FN-6998 Pro 140mm PWM ARGB Case Fan1,112$39Compare
Brontix FN-5682 Prime 120mm PWM Case Fan446$19Compare
Brontix FN-2437 Ti 120mm PWM ARGB Case Fan1,209$39Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-8640 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/6779189 (accessed 2026-10-20).