Apple 5420 用户手册
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Specifications
I/O Interfaces - 9
I/O Interfaces
Serial
Two serial ports: LocalTalk and GeoPort 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)
Controls
Soft-power control from keyboard
Front panel pushbutton control for sound volume
Front panel pushbutton control for display brightness
Infrared remote control option