Hardware Spec Index

Caldera FN-3646 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN3646-ULTRA · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index288 (Case Fans scale)
Category rank#4,659
Street price$9
Power4 W
Performance per dollar32.00
Released2019

Specifications

BrandCaldera
ModelCaldera FN-3646 Ultra
Size120 × 120 × 25 mm
Speed200–2,800 RPM (PWM)
Airflow95.2 CFM
Static pressure3.08 mmH₂O
Noise36 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Brontix FN-8520 Pro 120mm PWM ARGB Case Fan (3-Pack)1,321$49Compare
Caldera FN-5690 Ultra 120mm PWM ARGB Case Fan994$39Compare
Caldera FN-8050 Core 140mm PWM Case Fan (3-Pack)300$9Compare
Zephyra FN-8267 Pro 120mm PWM ARGB Case Fan1,140$39Compare
Zephyra FN-4365 Prime 120mm PWM Case Fan (3-Pack)271$9Compare
Teralux FN-3683 Ti 120mm PWM ARGB Case Fan1,315$39Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-3646 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/7067072 (accessed 2026-10-19).