SCSI: DB-25
Serial Ports: 2
Sound Output: stereo 16 bit.
ADB: 1
Ethernet: 10baseT
Machine Gestalt ID: 510
PRAM Battery: UNKNOWN

Minutiae:

Upgraded with one DIMM at a time.

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

Has 4MB ROM and a 1.44MB SuperDrive.