Hardware Spec Index

Caldera FN-5660 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN5660-ULTRA · Released 2026 · Updated 2026-10-19

Key facts

Benchmark index313 (Case Fans scale)
Category rank#17,425
Street price$9
Power3 W
Performance per dollar34.78
Released2026

Specifications

BrandCaldera
ModelCaldera FN-5660 Ultra
Size140 × 140 × 25 mm
Speed500–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise25 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Teralux FN-7920 Core 140mm PWM Case Fan353$9Compare
Teralux FN-3522 Prime 140mm PWM Case Fan (3-Pack)402$9Compare
Brontix FN-5689 Pro 140mm PWM ARGB Case Fan1,400$49Compare
Zephyra FN-3043 Plus 120mm PWM ARGB Case Fan1,137$39Compare
Caldera FN-6235 Ti 140mm PWM ARGB Case Fan (3-Pack)1,301$49Compare
Caldera FN-1433 Ultra 120mm PWM Case Fan (3-Pack)665$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-5660 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/458195 (accessed 2026-10-19).