Supported System Software: 7.5.2, 7.5.3
SCSI: DB-25
Serial Ports: 2
Sound Output: stereo 16 bit.
ADB: 1
Ethernet: AAUI
Machine Gestalt ID: 67

Minutiae:

Can be accelerated with Newer Technology's  512K or 1MB Cache SIMMs,  part #  7CC512A or 7CC1MA.

Upgraded two SIMMs at a time.

Has 4096K ROMs and an Apple 1.44MB SuperDrive.

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

Energy Star compliant.