One SIMM socket.

Requires 80ns, or faster, memory.

This computer comes with 4096K ROMs and an Apple 1.44MB SuperDrive that uses high-density floppy disks and reads, writes, and formats Macintosh, Windows, MS-DOS, OS/2, and ProDOS disks.

Serial Port with the phone icon supports synchronous modems, with handshaking on both output and input supported.

Sound output is 16-bit stereo for CD playthrough.  Sound output is 8-bit for Macintosh generated sounds.  Front headphone jack is 16-bit stereo.

Has an internal IDE drive with external SCSI support.

Has an international power supply.

Has a Communication Slot for network cards and modems.

Has a Video System Slot for a video capture card.

Has a Video/TV System Slot for a cable-ready television tuner.

Has a 32-bit 030 LC Processor Direct Slot (PDS).