IBM 3580 Model H11 tape drives. The Model H11 offers an ultra/wide SCSI high voltage differential interface.
The 3580 tape drive can be attached to the IBM AS/400, RS/6000, RS/6000 SP systems, Netfinity, and non-IBM servers, workstations, and personal computers that support Ultra/Wide SCSI HVD and Ultra2/Wide SCSI LVD interface specifications.