Hardware Spec Index

Teralux FN-3821 Prime 120mm PWM Case Fan

Case Fans · Teralux · SKU FN3821-PRIME · Released 2020 · Updated 2026-10-21

Key facts

Benchmark index761 (Case Fans scale)
Category rank#38,465
Street price$19
Power3 W
Performance per dollar40.05
Released2020

Specifications

BrandTeralux
ModelTeralux FN-3821 Prime
Size120 × 120 × 25 mm
Speed200–1,700 RPM (PWM)
Airflow57.8 CFM
Static pressure1.87 mmH₂O
Noise29 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-3821 Prime 120mm PWM Case Fan”, https://vextor7.com/item/5804692 (accessed 2026-10-21).