Hardware Spec Index

Caldera FN-3978 XT 120mm PWM Case Fan

Case Fans · Caldera · SKU FN3978-XT · Released 2025 · Updated 2026-10-22

Key facts

Benchmark index517 (Case Fans scale)
Category rank#15,191
Street price$19
Power3 W
Performance per dollar27.21
Released2025

Specifications

BrandCaldera
ModelCaldera FN-3978 XT
Size120 × 120 × 25 mm
Speed400–1,500 RPM (PWM)
Airflow51.0 CFM
Static pressure1.65 mmH₂O
Noise24 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3978 XT 120mm PWM Case Fan”, https://vextor7.com/item/74892569 (accessed 2026-10-22).