The EverCool EC2008M05CA C fan has the following description:

• Motor: One ball and one other cylindrical bearing.
• Material: Plastic frame (UL 94V-0).
• Wiring: UL 1007 AWG #28 or equivalent; red wire positive (+), black wire negative (-), yellow or blue signal wire (FG).
• Operation: Operation type selection.
• Maximum airflow: Measured in free air.
• Maximum air pressure: Measured in zero airflow.
• Noise: Measured in an anechoic chamber in free air, at a distance of one meter from the intake.
• Typical values: All measurements are typical values at nominal voltage.
• Note: Specifications are subject to change without notice.
• Special function: Additional special function can be added according to customer requirements.