That is not a SCSI connector. The ones with the DSUB style plug have offset pin rows, and while i do not remember the pin count, i'm sure they also were smaller. The newer SCSI connectors have a smaller pin spacing, as is visible in the screenhot of beanflying. I think in his link the 2.54mm spacing refers to the PCB pins.
Can you tell us what that card is? Looks like an old ISA bus card. I have never seen such a connector without offset pins.