Source : Free On-Line Dictionary of Computing

Slot 2
     
         A physical and electrical specification
        for the 330-lead edge-connector used by some of {Intel}'s
        {microprocessor} cards, currently (August 1999) the {SECC}
        {Pentium III}/{Xeon}.
     
        Slot 2 is intended for use in high end multi-processor
        {workstations} and {servers}.
     
        See also {Slot A}, {Slot 1}.
     
        [Multi processor support?]
     
        (1999-08-04)