Hardware Spec Index

Caldera FN-1685 Ultra 120mm PWM Case Fan

Case Fans · Caldera · SKU FN1685-ULTRA · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index385 (Case Fans scale)
Category rank#194
Street price$9
Power3 W
Performance per dollar42.78
Released2023

Specifications

BrandCaldera
ModelCaldera FN-1685 Ultra
Size120 × 120 × 25 mm
Speed200–1,800 RPM (PWM)
Airflow61.2 CFM
Static pressure1.98 mmH₂O
Noise23 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-1685 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/21492447 (accessed 2026-10-22).