I have a round (imagine that) SCSI cable as old as my Amiga that has an internal connector on one end, and internal connector on the other end, *and* an external connector on one end and and external connector on the other end. It only has two ends. It connects my CyberStormPPC SCSI-3 internal connector of my wide open A3000UX to the external connector of my faster-than-his-IDE SCSI RAID array. Granted my RAID array currently only has 50 some gigabytes, but, everything I have is in duplicate and I still have plenty of space.