Eight SIMM sockets.  Upgraded with two SIMMs at a time.

Ships with a minimum of 8MB (two 4MB SIMMs) of RAM installed. These SIMMs are located in the first two SIMM Sockets and may not be removed. That leaves six SIMM Sockets which are capable of receiving up to 32MB each for a total of 192MB in the 6 sockets plus 8MB in the first 2 sockets for grand total of 200MB.

Requires 80ns, or faster, memory.

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

Serial Ports with the phone icon and the printer icon support synchronous modems, with handshaking on both output and input supported. Both Serial Ports can be used with Apple's GeoPort telecom adaptor.

Sound output is 16-bit stereo output.

Networking is supported through built-in Ethernet (AAUI port).

This computer has an international power supply
Line voltage: 90 to 240 volts AC, RMS single phase, automatically configured 
Frequency: 50 to 60 Hz, single phase 
Power: 200 W maximum, not including display 
Energy Star compliant 

Interfaces
Three medium-performance NuBus expansion slots compatible with all Apple NuBus-compliant cards. One graphics slot, One Apple Desktop Bus (ADB) port for a keyboard, mouse, and other device, AAUI-15 Ethernet connector, Two DMA serial (RS-232/RS-422) ports compatible with LocalTalk and GeoPort cables, Dual-channel asynchronous SCSI interface: external channel supports up to six SCSI devices (5MB/sec); internal channel supports a hard disk array (10MB/sec), 16-bit stereo sound input and output ports, DB-15 video port.