Hardware Spec Index

Teralux FN-3657 Ultra 120mm PWM Case Fan

Case Fans · Teralux · SKU FN3657-ULTRA · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index260 (Case Fans scale)
Category rank#39,145
Street price$9
Power3 W
Performance per dollar28.89
Released2019

Specifications

BrandTeralux
ModelTeralux FN-3657 Ultra
Size120 × 120 × 25 mm
Speed400–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise33 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Teralux FN-8976 Plus 120mm PWM Case Fan213$9Compare
Brontix FN-6800 XT 140mm PWM ARGB Case Fan975$29Compare
Corvane FN-3518 SE 120mm PWM Case Fan292$9Compare
Zephyra FN-4199 Ultra 120mm PWM Case Fan753$19Compare
Zephyra FN-8911 SE 140mm PWM Case Fan601$19Compare
Zephyra FN-5432 Pro 140mm PWM Case Fan (3-Pack)360$9Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Teralux FN-3657 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/19639982 (accessed 2026-10-22).