Hardware Spec Index

Brontix FN-5681 Ultra 120mm PWM ARGB Case Fan (3-Pack)

Case Fans · Brontix · SKU FN5681-ULTRA · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index1,057 (Case Fans scale)
Category rank#32,672
Street price$29
Power4 W
Performance per dollar36.45
Released2022

Specifications

BrandBrontix
ModelBrontix FN-5681 Ultra
Size120 × 120 × 25 mm
Speed300–2,500 RPM (PWM)
Airflow85.0 CFM
Static pressure2.75 mmH₂O
Noise25 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
Zephyra FN-9064 Plus 120mm PWM Case Fan494$19Compare
Brontix FN-7038 Pro 120mm PWM ARGB Case Fan1,202$49Compare
Teralux FN-1411 Max 140mm PWM Case Fan (3-Pack)583$19Compare
Brontix FN-1678 Edge 140mm PWM ARGB Case Fan1,301$49Compare
Caldera FN-4319 Ultra 140mm PWM Case Fan700$19Compare
Zephyra FN-3071 Prime 140mm PWM Case Fan635$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-5681 Ultra 120mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/206071 (accessed 2026-10-21).