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There seem to be many ways of referring to the various connectors and chip types found on motherboards and cards. This page illustrates various connectors along with the names used for them on this site. "SCSI" is a protocol, not a bus.
A given connector can have different pin-outs for different applications. These pages are merely an attempt to clarify the connector names used in hardware descriptions in this site.
Connections Page 1
CPUs and other chips are detailed here.

----Connections2----

external "SCSI" connectors

HD-20
HD-20
HD-28
HD-28
HD-50
HD-50
Centronics-50
Centronics-50
high-density Centronics-14
HD Centronics-60
high-density Centronics-60
(aka SCSI-2)
HD Centronics-60

Other connections

female BNC
female BNC

Expansion busses and memory

male SBus
male SBus
female SBus
female SBus
30-SIMM
30-SIMM
72-SIMM
72-SIMM
168-DIMM
168-DIMM