Hardware Spec Index

Brontix FN-5645 Prime 120mm PWM Case Fan

Case Fans · Brontix · SKU FN5645-PRIME · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index376 (Case Fans scale)
Category rank#15,339
Street price$9
Power4 W
Performance per dollar41.78
Released2021

Specifications

BrandBrontix
ModelBrontix FN-5645 Prime
Size120 × 120 × 25 mm
Speed500–2,500 RPM (PWM)
Airflow85.0 CFM
Static pressure2.75 mmH₂O
Noise22 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Brontix FN-8497 Edge 120mm PWM ARGB Case Fan1,240$49Compare
Caldera FN-6859 Edge 120mm PWM Case Fan526$19Compare
Teralux FN-3256 Plus 120mm PWM ARGB Case Fan947$29Compare
Teralux FN-9194 Pro 120mm PWM ARGB Case Fan1,080$39Compare
Zephyra FN-9751 Ultra 120mm PWM Case Fan753$19Compare
Brontix FN-4951 Ultra 120mm PWM Case Fan (3-Pack)520$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-5645 Prime 120mm PWM Case Fan”, https://vextor7.com/item/91781505 (accessed 2026-10-21).