B66 is a designation used in various contexts, including transportation and technology. In the realm of transportation, it often refers to a specific bus route or highway designation, which can vary by region. For example, in some cities, B66 may indicate a bus line that connects key neighborhoods or landmarks. In technology, B66 can refer to a model number for electronic devices or components. This designation helps consumers identify specific features or specifications associated with that model. Understanding the context in which B66 is used is essential for accurate interpretation.