The Sunon EF50151B1-1B00U-A99 is a small blower fan designed for cooling electronics in a variety of applications. It has a 50x15mm frame size, operates at 12VDC with a 4.5CFM airflow rating, 1.28W power consumption, 41dBA noise level, 0.67 inchH2O static pressure rating, and a 2-ball bearing system. The fan has an operating temperature range of 0-70°C and is RoHS compliant. The fan is suitable for applications requiring high efficiency, low noise operation, and offering extended operating life in a compact package.