Sharp X68000 EXPERT II

The Sharp X68000 EXPERT II was a 1990 refinement of the 2MB EXPERT tower. It retained the 10 MHz 68000-class processor and twin-tower enclosure while shipping with updated Human68k and SX-Window software.

A floppy-only model and an EXPERT II-HD with a 40MB hard disk were offered, providing a mature version of Sharp’s original SASI-based X68000 design.

Notable Features

• 2MB RAM standard in the signature twin-tower case.
• EXPERT II-HD configuration included a 40MB hard disk.
• Bundled Human68k 2.0 and SX-Window 2.0.

Historical Significance

• Represented the mature form of the original 10 MHz EXPERT line.
• Provided a stable platform for the rapidly expanding X68000 software library.

Collector's Notes

• The factory hard disk used the older SASI interface.
• Recapped power supplies and modern storage replacements improve reliability.

Specifications

Technical Information
Name	Sharp X68000 EXPERT II
Manufacturer	Sharp
Launched	Wednesday, January 3, 1990
Country	Japan
CPU	Hitachi HD68HC000 at 10 MHz
Units Sold
Form Factor	Horizontal desktop
Display	Multi-frequency RGB monitor support
Expansion	Four expansion slots
Graphical Environment	SX-Window 2.0
Operating System	Human68k 2.0
Storage	Two 5.25-inch floppy drives; HD configuration included 40MB hard disk
Sound	Yamaha YM2151 FM and OKI MSM6258 ADPCM
Graphics	Sharp X68000 custom graphics chipset
RAM	1MB standard, expandable to 12MB
CPU Speed	10 MHz