Source : Free On-Line Dictionary of Computing

Single Edge Contact Cartridge
     
         (SEC, SECC) The cased {daughterboard} housing
        {Intel}'s {Pentium II}, {Pentium III}, and {Xeon}
        {microprocessors}.
     
        A SECC fits into a {Slot 1} or {Slot 2} connector.
     
        [SECC 2?]
     
        (1999-08-05)