Hardware Spec Index

Brontix FN-3977 SE 140mm PWM Case Fan

Case Fans · Brontix · SKU FN3977-SE · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index733 (Case Fans scale)
Category rank#4,249
Street price$19
Power3 W
Performance per dollar38.58
Released2021

Specifications

BrandBrontix
ModelBrontix FN-3977 SE
Size140 × 140 × 25 mm
Speed400–2,200 RPM (PWM)
Airflow105.6 CFM
Static pressure2.09 mmH₂O
Noise36 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Brontix FN-6950 Edge 120mm PWM ARGB Case Fan808$29Compare
Brontix FN-2511 Edge 120mm PWM ARGB Case Fan1,026$39Compare
Brontix FN-7807 XT 120mm PWM ARGB Case Fan994$29Compare
Zephyra FN-4896 Ti 120mm PWM Case Fan778$29Compare
Zephyra FN-4708 Prime 120mm PWM Case Fan476$9Compare
Brontix FN-2959 Plus 140mm PWM Case Fan566$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-3977 SE 140mm PWM Case Fan”, https://vextor7.com/item/7640524 (accessed 2026-10-25).