these IBM micro channel SCSI look like the male end equivalent, although yours is 40 pin and these are 60.
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Why do you think it's SCSI? Look at the alignment lugs.
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> look like the male end equivalent

going off of the shape and design. it could be an expansion slot, absolutely. i looked at many 40 pin connectors on the market and this is the closest i found to anything nearing that exact shape. i have zero doubt a SCSI drive could also have alignment lugs.
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