Apple Macintosh LC III

Apple Macintosh LC III was introduced in 10 February 1993 and redesigned the budget desktop around a faster full-width 68030 memory path. It used a Motorola 68030 at 25 MHz with 4MB standard; expandable to 36MB. 25MHz 68030 and 32-bit bus corrected the LC II's main bottleneck.

The LC III delivered a large practical performance increase and formed the basis of numerous Performa configurations.

Notable Features

• 25MHz 68030 and 32-bit bus corrected the LC II's main bottleneck.
• Memory ceiling rose to 36MB.
• Revised LC III PDS required compatible expansion cards.

Historical Significance

• The LC III delivered a large practical performance increase and formed the basis of numerous Performa configurations.
• Its place in the range reflects Apple's progression from the original compact Macintosh toward broader professional, educational and portable markets.

Collector’s Notes

• Performa rebadges share related hardware, so model labels and clock speed should be checked
• Original keyboards, mice, storage devices and model-specific accessories help document a complete period configuration.

Specifications

Technical Information
Name	Apple Macintosh LC III
Manufacturer	Apple
Launched	Wednesday, February 10, 1993
Country	United States
CPU	Motorola 68030 at 25 MHz
Units Sold
Operating System	System 7.1 through Mac OS 8.1
I/O	Video, SCSI, two serial, ADB, audio and one LC III PDS
Keyboard	External ADB keyboard and mouse
Storage	1.44MB floppy and internal SCSI hard disk
Sound	Eight-bit mono input and stereo output
Graphics	Up to 832 x 624 colour depending on VRAM
Display	Built-in colour video
ROM	1MB ROM
RAM	4MB standard; expandable to 36MB
CPU Speed	25 MHz