Hardware Spec Index

Caldera FN-3921 Ultra 120mm PWM ARGB Case Fan (3-Pack)

Case Fans · Caldera · SKU FN3921-ULTRA · Released 2020 · Updated 2026-10-24

Key facts

Benchmark index1,058 (Case Fans scale)
Category rank#1,604
Street price$29
Power3 W
Performance per dollar36.48
Released2020

Specifications

BrandCaldera
ModelCaldera FN-3921 Ultra
Size120 × 120 × 25 mm
Speed200–2,000 RPM (PWM)
Airflow68.0 CFM
Static pressure2.20 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3921 Ultra 120mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/3298693 (accessed 2026-10-24).