Hardware Spec Index

Caldera FN-6686 Ultra 120mm PWM Case Fan

Case Fans · Caldera · SKU FN6686-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index762 (Case Fans scale)
Category rank#13,604
Street price$19
Power4 W
Performance per dollar40.11
Released2021

Specifications

BrandCaldera
ModelCaldera FN-6686 Ultra
Size120 × 120 × 25 mm
Speed400–2,600 RPM (PWM)
Airflow88.4 CFM
Static pressure2.86 mmH₂O
Noise29 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Zephyra FN-7642 Core 120mm PWM Case Fan (3-Pack)394$9Compare
Caldera FN-8606 Ti 140mm PWM Case Fan643$19Compare
Corvane FN-1601 Prime 120mm PWM ARGB Case Fan1,323$49Compare
Caldera FN-5552 Pro 140mm PWM ARGB Case Fan (3-Pack)1,342$39Compare
Teralux FN-4533 Core 120mm PWM ARGB Case Fan1,235$39Compare
Caldera FN-7654 Ultra 140mm PWM ARGB Case Fan (3-Pack)1,316$49Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-6686 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/3967943 (accessed 2026-10-20).