Hardware Spec Index

Caldera FN-6661 Ultra 120mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN6661-ULTRA · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index1,009 (Case Fans scale)
Category rank#4,102
Street price$29
Power4 W
Performance per dollar34.79
Released2020

Specifications

BrandCaldera
ModelCaldera FN-6661 Ultra
Size120 × 120 × 25 mm
Speed200–2,500 RPM (PWM)
Airflow85.0 CFM
Static pressure2.75 mmH₂O
Noise28 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Zephyra FN-1938 Plus 140mm PWM Case Fan311$9Compare
Caldera FN-1584 Pro 120mm PWM ARGB Case Fan (3-Pack)1,103$39Compare
Teralux FN-4840 Max 120mm PWM Case Fan257$9Compare
Caldera FN-7166 Pro 120mm PWM Case Fan247$9Compare
Corvane FN-8621 Ultra 140mm PWM Case Fan252$9Compare
Brontix FN-9095 Plus 120mm PWM Case Fan587$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-6661 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/72944561 (accessed 2026-10-20).