Hardware Spec Index

Caldera FN-3647 Pro 140mm PWM ARGB Case Fan (3-Pack)

Case Fans · Caldera · SKU FN3647-PRO · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index880 (Case Fans scale)
Category rank#16,330
Street price$29
Power4 W
Performance per dollar30.34
Released2021

Specifications

BrandCaldera
ModelCaldera FN-3647 Pro
Size140 × 140 × 25 mm
Speed300–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise29 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Brontix FN-2839 SE 120mm PWM ARGB Case Fan881$29Compare
Brontix FN-1285 Ti 120mm PWM Case Fan717$19Compare
Teralux FN-5848 Core 120mm PWM Case Fan467$19Compare
Zephyra FN-8557 Pro 120mm PWM ARGB Case Fan (3-Pack)1,204$39Compare
Zephyra FN-4242 Edge 120mm PWM ARGB Case Fan826$29Compare
Zephyra FN-5071 XT 140mm PWM Case Fan729$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-3647 Pro 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/85968765 (accessed 2026-10-23).