This is a Cooling Fan by Novak USA. FEATURES: 5 volt DC Black in color Light weight Cools R/C motors and other electronics for improved efficiency and performance 120 day limited warranty INCLUDES: (1) Fan (1) Decal Sheet REQUIRES: Installation SPECS: Length: 0.98" (25mm) Weight: 0.25oz (7g) Width: 0.98" (25mm) Airflow 2.8CFM Thickness: 0.39" (10mm) Voltage: 5 Volts DC EEW 5/19/05 ir/jxs