Hardware Spec Index

Teralux FN-3640 Prime 140mm PWM Case Fan (3-Pack)

Case Fans · Teralux · SKU FN3640-PRIME · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index666 (Case Fans scale)
Category rank#39,290
Street price$19
Power3 W
Performance per dollar35.05
Released2020

Specifications

BrandTeralux
ModelTeralux FN-3640 Prime
Size140 × 140 × 25 mm
Speed300–1,800 RPM (PWM)
Airflow86.4 CFM
Static pressure1.71 mmH₂O
Noise30 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Caldera FN-2240 Max 140mm PWM ARGB Case Fan1,314$49Compare
Caldera FN-9821 Core 120mm PWM Case Fan364$9Compare
Teralux FN-4683 SE 120mm PWM Case Fan730$19Compare
Brontix FN-3625 Edge 120mm PWM Case Fan482$19Compare
Zephyra FN-6848 Pro 140mm PWM ARGB Case Fan1,069$39Compare
Brontix FN-5933 SE 120mm PWM ARGB Case Fan1,345$49Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Teralux FN-3640 Prime 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/8320032 (accessed 2026-10-22).