Apple Macintosh Performa 577 - Manual (Page 67)

Take Apart Chassis Harness Assembly - 32
• Chassis 922-1824 supports the auto-insert Apple
SuperDrive and CD-ROM drives earlier than the 300i+.
This chassis requires a floppy drive adapter, and the CD-
ROM connector bridge is about 1-1/2 inches above the
CD-ROM drive bay.
• Chassis 922-0557 supports the manual-insert Apple
SuperDrive and CD-ROM drives earlier than the 300i+.
This chassis uses a ribbon cable to connect the floppy
drive, and the CD-ROM connector bridge is about 1-1/2
inches above the CD-ROM drive bay.
• Chassis 661-1094 supports the manual-insert Apple
SuperDrive and the 300i+ CD-ROM drive. This chassis
uses a ribbon cable to connect the floppy drive, but the
CD-ROM connector bridge is only 1/2 inch above the CD-
ROM drive bay.