Hardware Spec Index

Caldera FN-4788 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN4788-ULTRA · Released 2022 · Updated 2026-10-23

Key facts

Benchmark index378 (Case Fans scale)
Category rank#14,823
Street price$9
Power4 W
Performance per dollar42.00
Released2022

Specifications

BrandCaldera
ModelCaldera FN-4788 Ultra
Size140 × 140 × 25 mm
Speed400–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise30 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4788 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/835688 (accessed 2026-10-23).