HDI-30 SCSI Disk Adapter
Makes the PowerBook act like a hard drive when attached to another computer (referred to as SCSI or Target Disk Mode). Has 30 pin in the small end that goes into the PowerBook. The 30th pin tells the PowerBook to act like a hard drive. When booted this way, the PowerBook's monitor will show a SCSI icon floating across the display.
Figure 1, HDI-30 SCSI Disk Adapter
Pass-through SCSI Terminator
Used between the PowerBook and another SCSI Device.
Figure 2, Pass-through SCSI Terminator
Peripheral Interface Cable
Used to connect one SCSI device to another.
Figure 3, Peripheral Interface Cable
Extender Cable
Used as an extension between two devices on the SCSI chain.
Figure 4, Extender Cable