I found a 250MB Avatar Shark drive, along with 4 disks.  It has the PC Parallel Port cable.  It also says on the box that SCSI interface cables for Macintosh computers are sold separately.  I looked around the web, but have not found one.  I guess that particular cable is probably a very rare item.  Kind of an interesting drive.  It looks as the disks are small HDD platters.