There are SCSI-USB adapters out there, but they cost as much as a USB Zip 100. The other problem is compatibility. USB and SCSI connections both supply power, but in a different way. Zip drives don't like it. Most adapters say Zips will work when daisy chained to a SCSI device that is compatible with the adapter. If the Zip is your only SCSI device, then your choices are to get a USB Zip or connect it to a SCSI machine and access the files via filesharing.