An electrical connecting device (100) used for connecting multiple connectors comprises a first connector (1), a number of second connectors (2), and a cable means (3). Each connector comprises a number of contacts (64) therein. The cable means comprises a number of lines (301) therein. One ends of the lines (31) are bundled together to terminated to the first connector, another ends are divided into a number of individual sets (32), and the another ends of the lines of each set are terminated to a corresponding second connector, thus that successfully building a fun out connecting solution in InfiniBand™ application.