Hardware Spec Index

Caldera FN-8640 Prime 140mm PWM ARGB Case Fan (3-Pack)

Case Fans · Caldera · SKU FN8640-PRIME · Released 2024 · Updated 2026-10-21

Key facts

Benchmark index1,240 (Case Fans scale)
Category rank#41,643
Street price$39
Power4 W
Performance per dollar31.79
Released2024

Specifications

BrandCaldera
ModelCaldera FN-8640 Prime
Size140 × 140 × 25 mm
Speed300–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise34 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Brontix FN-2326 Prime 120mm PWM ARGB Case Fan866$19Compare
Brontix FN-5669 SE 120mm PWM ARGB Case Fan942$29Compare
Corvane FN-5744 SE 120mm PWM Case Fan335$9Compare
Corvane FN-2407 SE 140mm PWM ARGB Case Fan1,282$39Compare
Teralux FN-3974 SE 140mm PWM Case Fan (3-Pack)557$19Compare
Corvane FN-2955 Ti 120mm PWM Case Fan678$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-8640 Prime 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/53669610 (accessed 2026-10-21).