The NX300146 is an Aavid, Thermal Division of Boyd Corporation Cooling Fan, 2.06 inch diameter, 24 Volt DC, ball bearing. It has a 3300 RPM, 2.77 CFM, and a 0.9 inch H2O static pressure rating. It is RoHS compliant, UL/CSA approved, and has plug and play connection with 4-pin termination. The fan uses standard two-ball bearings which provide reliable operation for industrial and telecommunications applications. It is an excellent choice for use in a variety of electronic cooling solutions.