Hardware Spec Index

Caldera FN-4840 Ultra 120mm PWM Case Fan

Case Fans · Caldera · SKU FN4840-ULTRA · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index491 (Case Fans scale)
Category rank#15,610
Street price$19
Power4 W
Performance per dollar25.84
Released2021

Specifications

BrandCaldera
ModelCaldera FN-4840 Ultra
Size120 × 120 × 25 mm
Speed500–2,800 RPM (PWM)
Airflow95.2 CFM
Static pressure3.08 mmH₂O
Noise30 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4840 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/390604 (accessed 2026-10-19).