Hardware Spec Index

Caldera FN-8638 Ultra 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN8638-ULTRA · Released 2025 · Updated 2026-10-19

Key facts

Benchmark index1,250 (Case Fans scale)
Category rank#26,957
Street price$49
Power3 W
Performance per dollar25.51
Released2025

Specifications

BrandCaldera
ModelCaldera FN-8638 Ultra
Size140 × 140 × 25 mm
Speed200–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise24 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-8638 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/11080433 (accessed 2026-10-19).