Macintosh IIx (1988)
Macintosh IIx (1988): Macintosh with a 68030 at 16 MHz, 1-4 MB of standard RAM and the first standard 1.44 MB FDHD floppy drive.
Specs
| Release | 1988-09-19 |
| Chip | 68030 · 16 MHz |
| RAM | 1 or 4 MB standard (up to 128 MB with MODE32, per EveryMac) |
| Ports | 6 × NuBus · 2 × ADB · SCSI DB-25 |
| System | 6.0.1 → 7.5.5 |
| Weight | 10.9 kg |
| Dimensions | 140 × 475 × 366 mm |
| ROM | 256 KB ROM ("32-bit dirty": 24-bit addressing by default) |
| Storage (detail) | 40 or 80 MB SCSI hard drive · 1-2 1.44 MB FDHD floppy drives (first Mac with FDHD as standard) |
| VRAM | 256 KB (upgradable to 512 KB) on the NuBus video card |
| Video (detail) | No onboard video: NuBus card · up to 6 displays · Color QuickDraw (16.7M colors) |
| Expansion slots | 6 × NuBus |
| Audio | 8-bit sound · built-in speaker |
Launch
Apple introduced it on September 19, 1988 and sold it until October 15, 1990. It was the first Mac with a 1.44 MB FDHD floppy drive as standard and adopted the 68030 processor with the 68882 FPU. Dates and details: EveryMac and Wikipedia.
Marketing
Successor to the Macintosh II, it kept the six NuBus slots and added the 68030’s PMMU, required for virtual memory. Priced at $7,769-$9,369, it remained aimed at the professional market. (Wikipedia and EveryMac.)
Flaws and fixes
Apple documents no model-specific defects in the sources consulted. Limits that do appear in its spec sheet: RAM of 1 MB to 32 MB using 8 30-pin SIMM slots; 24-bit addressing.
Indicative price
New (launch, US): $7,769 · $9,369 with 80 MB hard drive · Wikipedia; EveryMac lists $7,800 / $9,300
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Updated: October 29, 2026 · Sources: Apple Soporte · Apple Tech Info Library · Compare this product