WD-7000 ISA host adapter
Early versions didn't have a fuse in the TERMPWR circuit. Reversing the SCSI connector caused smoke and possibly burned cables.
DVD-U02 SCSI DVD-ROM drive
Pin 25 of the SCSI connector is GROUND. It should be left OPEN. This can cause TERMPWR shorts.
68 to 50 pin external adapters
Pins 17, 18 and 51 of the HD 68 connector are wired incorrectly.
KXL-D740 Portable CD-ROM drive
Improperly rejects WIDE negotiation message.