Hardware Spec Index

Brontix FN-4521 Pro 120mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN4521-PRO · Released 2021 · Updated 2026-10-22

Key facts

Benchmark index1,137 (Case Fans scale)
Category rank#5,890
Street price$39
Power4 W
Performance per dollar29.15
Released2021

Specifications

BrandBrontix
ModelBrontix FN-4521 Pro
Size120 × 120 × 25 mm
Speed200–2,500 RPM (PWM)
Airflow85.0 CFM
Static pressure2.75 mmH₂O
Noise34 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Brontix FN-4687 SE 120mm PWM Case Fan (3-Pack)646$19Compare
Brontix FN-1273 Pro 120mm PWM ARGB Case Fan1,203$49Compare
Caldera FN-4701 Max 140mm PWM Case Fan434$9Compare
Caldera FN-2314 Core 120mm PWM ARGB Case Fan1,024$39Compare
Corvane FN-5022 Ti 120mm PWM Case Fan496$9Compare
Caldera FN-7337 Ti 120mm PWM Case Fan528$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-4521 Pro 120mm PWM ARGB Case Fan”, https://vextor7.com/item/97839964 (accessed 2026-10-22).