Hardware Spec Index

Caldera FN-4551 Ultra 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN4551-ULTRA · Released 2026 · Updated 2026-10-24

Key facts

Benchmark index998 (Case Fans scale)
Category rank#29,480
Street price$29
Power4 W
Performance per dollar34.41
Released2026

Specifications

BrandCaldera
ModelCaldera FN-4551 Ultra
Size140 × 140 × 25 mm
Speed500–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise30 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-4551 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/92397217 (accessed 2026-10-24).