The present invention is directed to a high density electrical connector which can provide 80 or more twinax connections per linear inch in a 20 millimeter card slot. In a typical electronic system package, 20 millimeters is the spacing from center line to center line of the adjacent parallel daughtercards....http://www.google.de/patents/US7056128?utm_source=gb-gplus-sharePatent US7056128 - High speed, high density interconnect system for differential and single-ended transmission systems
High speed, high density interconnect system for differential and single ...