16 MHz Motorola 68030 with integrated memory-management unit and 68882 floating-point coprocessor; 0.5 KB L1 cache
GPU
No built-in video; a compatible NuBus video card is required for a display
Memory type
Eight 30-pin SIMM slots in two banks of four; Apple lists 1–128 MB using 120 ns memory and a 256 KB ROM. The original ROM uses 24-bit addressing without a 32-bit software extension.
Storage type
Internal 1.44 MB floppy drive and 40 or 80 MB internal SCSI hard-drive configurations
Expansion slots
Three NuBus slots; Low End Mac describes the smaller case and tool-free internal access
Display
Screen
None built in
Connections
Ports
Headphone jack
Back ports
Two Apple Desktop Bus ports, DB-19 external floppy, DB-25 SCSI, printer and modem serial ports and sound output; no built-in video or Ethernet
External displays
A NuBus video card is required; resolution and colour depth depend on the fitted card
Speakers
Internal speaker and sound output
Design and power
Type
Compact
Weight
6.2 kg
Width × depth × height
302 × 366 × 140 mm
Operating system
macOS
Size and weight detail
Apple's 5.5 × 11.9 × 14.4 inch and 13.6 lb reference dimensions; metric fields are rounded conversions
Power supply
Maximum 159 W; 100–240 V AC, 50–60 Hz; 3.6 V lithium clock battery and keyboard soft power
In the box
Original System Software 6.0.3. Apple lists 7 March 1989 as introduction; a separate maker first-sale date was not established.
Configurations
Processor
Memory
Storage
Storage type
68030 16 MHz (Macintosh IIcx)
1 MB
40 MB
Hard drive
68030 16 MHz (Macintosh IIcx)
4 MB
80 MB
Hard drive
Pros and cons
Pros
+Three NuBus expansion slots in a compact desktop case
+68030 processor with a floating-point coprocessor
+Supports up to 128 MB of memory with appropriate software
Cons
−Requires a separate NuBus video card
−No built-in Ethernet
−Original ROM needs extra software for 32-bit memory addressing
