Hardware Spec Index

Caldera FN-4758 Ultra 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN4758-ULTRA · Released 2021 · Updated 2026-10-22

Key facts

Benchmark index1,008 (Case Fans scale)
Category rank#7,392
Street price$29
Power4 W
Performance per dollar34.76
Released2021

Specifications

BrandCaldera
ModelCaldera FN-4758 Ultra
Size140 × 140 × 25 mm
Speed400–3,000 RPM (PWM)
Airflow144.0 CFM
Static pressure2.85 mmH₂O
Noise33 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4758 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/736816 (accessed 2026-10-22).