Hardware Spec Index

Teralux FN-4857 Ultra 140mm PWM ARGB Case Fan

Case Fans · Teralux · SKU FN4857-ULTRA · Released 2024 · Updated 2026-10-20

Key facts

Benchmark index870 (Case Fans scale)
Category rank#38,271
Street price$29
Power3 W
Performance per dollar30.00
Released2024

Specifications

BrandTeralux
ModelTeralux FN-4857 Ultra
Size140 × 140 × 25 mm
Speed400–1,800 RPM (PWM)
Airflow86.4 CFM
Static pressure1.71 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Teralux FN-4857 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/4156360 (accessed 2026-10-20).