Arctic S12038-8K (120x120x38 mm Fan): 120x120x38mm PWM Fan with up to 8000 RPM The ARCTIC Arctic S12038-8K is a 120x120x38mm fan with PWM control across a speed range of up to 8000 RPM. Fluid Dynamic Bearing Key Features: Speed Range up to 8000 RPM: PWM control allows fine adjustment between quiet operation and maximum cooling performance. Fluid Dynamic Bearing: Designed for a long service life even under continuous operation. PWM Control Built for Continuous Duty: Simplifies cable routing when multiple fans share the same header. For Demanding Cooling Tasks: Suitable for case ventilation as well as server and industrial applications with high cooling requirements. Technical Specifications: Model: ARCTIC Arctic S12038-8K Size: 120x120x38mm Speed: up to 8000 RPM Bearing: Fluid Dynamic Bearing Connector: 4-Pin PWM Ideal for: The ARCTIC Arctic S12038-8K is ideal for: case and radiator ventilation requiring high airflow server and industrial applications with elevated continuous-duty requirements With the ARCTIC Arctic S12038-8K, you get a 120x120x38mm PWM fan for the up to 8000 RPM speed range.