Hardware Spec Index

Caldera FN-6638 Max 140mm PWM ARGB Case Fan (3-Pack)

Case Fans · Caldera · SKU FN6638-MAX · Released 2026 · Updated 2026-10-24

Key facts

Benchmark index1,143 (Case Fans scale)
Category rank#31,405
Street price$39
Power4 W
Performance per dollar29.31
Released2026

Specifications

BrandCaldera
ModelCaldera FN-6638 Max
Size140 × 140 × 25 mm
Speed500–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 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-6638 Max 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/12484347 (accessed 2026-10-24).