Macintosh IIx

At A Glance

Produced as an incremental update to the Macintosh II line, the Macintosh IIx was the first Macintosh to support an internal 1.44Mb SuperDrive. It was essentially the same as a Macintosh II, but with a 68030 processor and a 68882 FPU. It launched in 1988 at a price of just under US$8,000 and supported an internal 40Mb hard drive. Read the original specifications of the Macintosh IIx at the Apple support site here.

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Original Specifications

  • Processor:
    • 68030; 32-bit internal
    • Harvard architecture
    • 15.667 MHz clock speed
    • 256-byte instruction and data caches
  • Coprocessor:
    • 68882 floating-point coprocessor (IEEE standard: 80-bit precision)
    • 15.667-MHz clock speed
  • Interfaces:
    • Six NuBus internal slots support full 32-bit address and data buses.
    • Two mini-8 serial (RS-232/ RS-422) ports
    • Two Apple Desktop Bus ports allow daisy-chaining of multiple peripheral devices with a SCSI interface: uses a 50-pin connector
      (internal) and a DB-25 connector (external)
    • Sound jack for stereo output

  • Mouse:
    • Mechanical tracking: optical shaft encoding at 3.94+/-0.39 pulses per mm (100 -+10 pulses/in.) of travel
  • Sound Generator:
    • Apple’s custom digital-sound chip provides 8-bit stereo sampling at 44.1 KHz, and includes four-voice, wave-table synthesis. Capable of driving stereo headphones or other stereo equipment through the sound jack.
  • Sound Generator:
    • Line voltage: 100 to 240 VAC, automatically configured
    • Frequency: 48 to 62 Hz
    • Maximum power: 230 W, not including monitor power
  • Size and Weight (Main Unit):
    • Height: 5.5 in. (14.0 cm)
    • Width: 18.7 in. (47.4 cm)
    • Depth: 14.4 in. (36.5 cm)
    • Weight: 24 lb. (10.9 kg, not including hard disk drive)

Problem with these specifications? Let us know.


Listen to a IIx booting up – awesome!

Low End Mac

Read a great review on the IIx over at Low End Mac.

Vectronics Apple World

As usual, the team over at VAW have a super comprehensive overview of the IIx. Check it out!
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