Hardware Spec Index

Caldera FN-6638 Plus 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN6638-PLUS · Released 2021 · Updated 2026-10-26

Key facts

Benchmark index830 (Case Fans scale)
Category rank#30,706
Street price$29
Power4 W
Performance per dollar28.62
Released2021

Specifications

BrandCaldera
ModelCaldera FN-6638 Plus
Size140 × 140 × 25 mm
Speed500–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise32 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6638 Plus 140mm PWM ARGB Case Fan”, https://vextor7.com/item/7476086 (accessed 2026-10-26).