HP 5090-1666 is a 1 m VSB-to-framegrabber cable for a connection between VSB equipment and a framegrabber. The catalogue identifies this exact part as a cable supplied without power/ground conductors.
Its stated length is 1 m, and its description names the VSB and framegrabber connection. The listing does not specify connector types or other electrical details, so this description is limited to the confirmed cable identity and configuration.