Hardware Spec Index

Teralux FN-3891 Prime 120mm PWM Case Fan (3-Pack)

Case Fans · Teralux · SKU FN3891-PRIME · Released 2023 · Updated 2026-10-24

Key facts

Benchmark index272 (Case Fans scale)
Category rank#9,484
Street price$9
Power4 W
Performance per dollar30.22
Released2023

Specifications

BrandTeralux
ModelTeralux FN-3891 Prime
Size120 × 120 × 25 mm
Speed200–2,600 RPM (PWM)
Airflow88.4 CFM
Static pressure2.86 mmH₂O
Noise23 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Caldera FN-1869 Edge 140mm PWM ARGB Case Fan1,277$49Compare
Caldera FN-2602 Core 140mm PWM ARGB Case Fan1,171$49Compare
Caldera FN-6577 Plus 120mm PWM ARGB Case Fan1,207$39Compare
Caldera FN-8272 Edge 120mm PWM Case Fan430$19Compare
Zephyra FN-8183 Prime 120mm PWM Case Fan (3-Pack)428$9Compare
Teralux FN-2679 Prime 120mm PWM ARGB Case Fan1,178$39Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Teralux FN-3891 Prime 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/15340905 (accessed 2026-10-24).