The M6500W USB EWS Device refers to a device or component that is part of a product that uses a USB interface for communication with a Windows computer. The EWS designation is likely a model name or series, and it could be related to various types of devices such as audio equipment, medical devices, wireless adapters, or sensors. Without more context, it's difficult to pinpoint the exact device, but the "USB EWS device" likely requires a specific driver to work correctly with a Windows system.