SCSI: DB-25
Serial Ports: 2
Sound Output: stereo 16 bit.
ADB: 1
Ethernet: 10baseT
Machine Gestalt ID: 513
PRAM Battery: 4.5V alkaline (Rayovac 840)

Minutiae:

Upgraded with one DIMM at a time.

Has expansion bay for optional TV/FM tuner.

Subwoofer audio capabilities when external speakers are connected.

Has 4MB ROM and a 1.44MB SuperDrive.