Hardware Spec Index

Teralux FN-9721 Ultra 120mm PWM ARGB Case Fan

Case Fans · Teralux · SKU FN9721-ULTRA · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index827 (Case Fans scale)
Category rank#1,812
Street price$19
Power3 W
Performance per dollar43.53
Released2019

Specifications

BrandTeralux
ModelTeralux FN-9721 Ultra
Size120 × 120 × 25 mm
Speed300–2,300 RPM (PWM)
Airflow78.2 CFM
Static pressure2.53 mmH₂O
Noise25 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Caldera FN-4714 SE 120mm PWM Case Fan (3-Pack)309$9Compare
Caldera FN-2376 Plus 120mm PWM ARGB Case Fan1,352$49Compare
Caldera FN-4284 Ti 120mm PWM ARGB Case Fan1,166$39Compare
Caldera FN-2360 Ultra 140mm PWM ARGB Case Fan (3-Pack)1,163$39Compare
Teralux FN-5326 Pro 140mm PWM ARGB Case Fan1,294$39Compare
Teralux FN-1738 XT 140mm PWM ARGB Case Fan831$29Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Teralux FN-9721 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/28298833 (accessed 2026-10-19).