EISA (extended ISA) - unlicensed response to MCA  Sept. 1998
  Compaq primary developer.

  33 MHz                            33 MB/s throughput max.

  32 bit addressing.                32 bit data.

  Bus mastering.                    Burst mode transfers.

  ISA compatible.
    Slot is bi-level and ISA cards set deeper in slot to seat on the
    correct connectors.             End on view
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  55 additional signals and 35 grounds.
    Grounds needed to protect lines from cross talk at faster speed.
 
  Plug and Play - cards no longer needed jumpers. 
    (Probably software jumper-ed like MCA)

  Open standard.

  More expensive than ISA
    And was shortly replaced by local buses such as PCI or VLB. 

  Few cards developed tended to be Disk Array controllers (raid) and
     Network server cards.