It looks like any SCSI Zip drive will work. The SCSI default number for the 9000 is 7 so as long as the external SCSI device is set for something other than 7, it should work (I recommend that you only try hooking up SCSI devices when they are turned off). The SCSI connection on the back of the 9000 is a SCSI-2 C50F (Centronic 50 female) and the SCSI connector on an Iomega Zip is a DB25F, so you'll need a cable and/or adapter combination that will be C50m on one end and DB25M on the other. This is a common SCSI cable or cable/adapter combo that you can get from any computer supply place (I think the SCSI Iomega Zip drives come with it). I haven't tried this yet but I will this weekend and will report back on how it works.