NEC Express5800/120Rd-2 Service Manual page 301

16. Insert the device carrier into the backup device bay.
Push the device carrier as far as it will go. It is locked when a "click" is heard.
Be careful not to catch the connected power extension cable in
NOTE:
inserting the device carrier.
17. Connect the SCSI cable and power cable (connector P3) to the device.
Use the SCSI cable provided with this server. Connect the other end of the SCSI cable to
the SCSI connector on the SCSI controller board or the system board (if no cable is
connected there).
Power extension cable
Disassembly and Reassembly 7-57
Power cable (P3)