Apple External 24x SCSI CD-ROM Drive CD 300 Macintosh Mac M0322 M3023 M2710LL/A
Connections on the back include 2 SCSI 50-pin ports, stereo audio line-out connections, and a SCSI ID selector (it is 2 y default). These are compatible with Performa, Quadra, Color Classic, Centris, and Power Mac systems.