Editing Macintosh Centris 650 (section)

=== Storage ===
An internal 1.4 MB Apple SuperDrive, an 80 to 500 MB SCSI hard drive and an optional internal 5.25-inch CD-ROM drive.<ref name="ss650spec" /> The case holds two internal SCSI devices.<ref name="dn11" /> The external DB-25 SCSI port supports up to six devices; the computer is always SCSI device 7.<ref name="ss650spec" /> The drive at the end of the internal cable must be terminated and other internal devices must not; the logic board terminates the external end automatically when nothing is plugged in.<ref name="dnscsi">''Developer Note: Centris 610, Centris 650, Quadra 800'', "SCSI Bus and Termination", pp. 18-19 (PDF pp. 30-31).</ref>