Hardware Spec Index

Teralux FN-3840 Max 140mm PWM Case Fan

Case Fans · Teralux · SKU FN3840-MAX · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index263 (Case Fans scale)
Category rank#3,264
Street price$9
Power3 W
Performance per dollar29.22
Released2023

Specifications

BrandTeralux
ModelTeralux FN-3840 Max
Size140 × 140 × 25 mm
Speed400–2,200 RPM (PWM)
Airflow105.6 CFM
Static pressure2.09 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Teralux FN-8352 Core 120mm PWM Case Fan (3-Pack)349$9Compare
Brontix FN-2811 Core 120mm PWM Case Fan264$9Compare
Zephyra FN-8050 Prime 120mm PWM ARGB Case Fan1,128$39Compare
Corvane FN-5355 SE 120mm PWM Case Fan688$19Compare
Brontix FN-5716 Max 120mm PWM Case Fan (3-Pack)476$19Compare
Zephyra FN-6218 Ultra 120mm PWM Case Fan (3-Pack)632$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Teralux FN-3840 Max 140mm PWM Case Fan”, https://vextor7.com/item/2432775 (accessed 2026-10-23).