MEC0381V1-000U-G99 is a part of Sunon, a manufacturer of temperature control fans. The part is a axial DC fan with a size of 38 mm (1.5 inch) and a nominal voltage of 12 VDC. It has an operating speed of 15,000 RPM and a single ball bearing system. It also has an air flow rating of 3.2 CFM and an operating temperature range of -10 to +70 °C. It has a white plastic frame and a black 4-wire lead connection.