Supported System Software: 7.1, 7.1.1 (Pro), 7.5, 7.5.1, 7.5.3 SCSI: none Serial Ports: 1 Sound Output: mono 8 bit. ADB: see below Ethernet: see below Machine Gestalt ID: 32 Minutiae: 9” supertwist LCD - 4 bit (16 Grays) Display. Has a 152-pin PDS (Processor Direct Slot) connector for connecting to the Duo Docking Bars. Newer Technology makes the following Docking Bars: Part # 7MD-S ----- SCSI MicroDock w/ ADB Part # 7MD-F ----- Floppy MicroDock w/ ADB Part # 7MB-P ----- PC Card MicroDock w/ ADB Part # 7MD-E ----- Ethernet MicroDock w/ ADB Part # 7MD-C ----- Color MicroDock w/ Audio & ADB Part # 7UD16SC --- 16sc UltraDock w/ SCSI, Color, Floppy, Audio & ADB Part # 7UD16SCE -- 16sce UltraDock w/ SCSI, Color, Ethernet, Floppy, Audio & ADB Original Enabler: 201 Serial Port with the phone icon supports synchronous modems, with handshaking on both the output and input. Has 1 MB ROM.