Hardware Spec Index

Caldera FN-3966 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN3966-ULTRA · Released 2026 · Updated 2026-10-21

Key facts

Benchmark index599 (Case Fans scale)
Category rank#9,938
Street price$19
Power4 W
Performance per dollar31.53
Released2026

Specifications

BrandCaldera
ModelCaldera FN-3966 Ultra
Size140 × 140 × 25 mm
Speed200–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise34 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Teralux FN-4071 Pro 120mm PWM ARGB Case Fan845$29Compare
Brontix FN-5812 Prime 120mm PWM ARGB Case Fan1,098$39Compare
Zephyra FN-4879 XT 120mm PWM ARGB Case Fan883$29Compare
Brontix FN-5437 Pro 120mm PWM ARGB Case Fan1,177$39Compare
Caldera FN-4720 Edge 140mm PWM Case Fan699$19Compare
Zephyra FN-6784 Core 140mm PWM Case Fan508$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-3966 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/6572234 (accessed 2026-10-21).