Hardware Spec Index

Teralux FN-9840 Ultra 120mm PWM ARGB Case Fan

Case Fans · Teralux · SKU FN9840-ULTRA · Released 2023 · Updated 2026-10-26

Key facts

Benchmark index1,031 (Case Fans scale)
Category rank#36,275
Street price$29
Power3 W
Performance per dollar35.55
Released2023

Specifications

BrandTeralux
ModelTeralux FN-9840 Ultra
Size120 × 120 × 25 mm
Speed300–2,000 RPM (PWM)
Airflow68.0 CFM
Static pressure2.20 mmH₂O
Noise31 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-9840 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/4301229 (accessed 2026-10-26).