Hardware Spec Index

Caldera FN-6721 Ultra 140mm PWM ARGB Case Fan (3-Pack)

Case Fans · Caldera · SKU FN6721-ULTRA · Released 2026 · Updated 2026-10-27

Key facts

Benchmark index1,082 (Case Fans scale)
Category rank#18,271
Street price$39
Power4 W
Performance per dollar27.74
Released2026

Specifications

BrandCaldera
ModelCaldera FN-6721 Ultra
Size140 × 140 × 25 mm
Speed200–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise24 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6721 Ultra 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/6847675 (accessed 2026-10-27).