Parallel SCSI used differential signaling and could reach up to 320 MB/s. Ordinary USB weighs in at 1.5 MB/s. USB 2 did a little better, but it would take USB 3 to eclipse the old SCSI data rate.

A device that cross connects computers to SCSI devices and overcomes certain SCSI limitations. The regular SCSI interface is a shared bus architecture, but a SCSI switch provides the full ...