> [ I ] have a male multi-pin
>connector that contains 50 pins 2 rows of 25, but is smaller and looks like
>what I thought the SCSI2 or Ultra or wide or extra wide looks like.

This is an alternate standard for a narrow SCSI (AKA, SCSI-2) cable. It 
employs the same family connectors as the UW-SCSI (AKA, SCSI-2) cable, 
except that the UW-SCSI is 68 pins, not 50.

Lots of external 3.5" devices (CD-ROM-R-R/W, SyJet, Sparq, etcetera) have 
adopted the SCSI-2 connector, even though the devices themselves may 
implement the SCSI-3 command set.

Still, many external devices retain the Amphenol-57-type (incorrectly 
called "Centronics") SCSI-1 50 pin connector. There is a one-to-one 
correspondence (an isomorphism) between the narrow SCSI-2 pin 
designations and the SCSI-1 designations.

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