Apple Mac 5260/100 - Manual (Page 31)

Specifications I/O Interfaces - 4
I/O Interfaces
Serial
Two RS-232/422 serial ports for modem and printer
(mini DIN-8 connectors) LocalTalk supported
SCSI One external SCSI port (DB-25 connector)
Supports up to seven SCSI devices
Apple Desktop Bus One Apple Desktop Bus (ADB) port (mini DIN-4 connector)
Sound Input Built-in microphone for monaural sound input.
Sound-input port for microphone or line input. The port accepts
stereophonic input, but sound is combined into monophonic
sound for play-through or recording.