Hardware Spec Index

Caldera FN-3948 Ultra 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN3948-ULTRA · Released 2024 · Updated 2026-10-19

Key facts

Benchmark index1,354 (Case Fans scale)
Category rank#36,458
Street price$49
Power3 W
Performance per dollar27.63
Released2024

Specifications

BrandCaldera
ModelCaldera FN-3948 Ultra
Size140 × 140 × 25 mm
Speed300–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise30 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3948 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/3979799 (accessed 2026-10-19).