Hardware Spec Index

Brontix FN-5840 Plus 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN5840-PLUS · Released 2023 · Updated 2026-10-21

Key facts

Benchmark index767 (Case Fans scale)
Category rank#22,415
Street price$29
Power4 W
Performance per dollar26.45
Released2023

Specifications

BrandBrontix
ModelBrontix FN-5840 Plus
Size140 × 140 × 25 mm
Speed500–3,000 RPM (PWM)
Airflow144.0 CFM
Static pressure2.85 mmH₂O
Noise31 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Brontix FN-1724 SE 120mm PWM ARGB Case Fan1,332$49Compare
Brontix FN-4940 XT 120mm PWM ARGB Case Fan1,084$39Compare
Brontix FN-1814 Max 140mm PWM ARGB Case Fan1,233$49Compare
Caldera FN-8727 Edge 120mm PWM Case Fan491$19Compare
Caldera FN-5756 Ultra 140mm PWM ARGB Case Fan1,011$29Compare
Brontix FN-5497 Core 120mm PWM ARGB Case Fan841$29Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-5840 Plus 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/71672447 (accessed 2026-10-21).