Motorola 68030 at 33 MHz with integrated memory management and 32-bit data path; optional socketed 68882, 0.5 KB first-level cache and no second-level cache. Apple Service Guide identifies the Performa 460, 466 and 467 as the 33 MHz LC III family; these aliases are not separate product records
GPU
512 KB built-in VRAM, expandable to 768 KB with a 256 KB SIMM. A 512 KB VRAM SIMM may be fitted but only 256 KB is used. At 640 × 480 and 832 × 624, standard memory supports 8-bit colour; upgraded VRAM supports 16-bit colour
Memory type
4 MB soldered RAM plus one 72-pin SIMM socket, maximum 36 MB. Apple specifies 80 ns minimum memory speed and SIMM capacities 1, 2, 4, 8, 16 or 32 MB. 1 MB ROM
Storage type
Apple LC III+ support lists 80–160 MB internal SCSI hard disks and an automatic-inject 1.44 MB floppy drive. Exact original RAM/drive configuration pairing is unresolved, so structured storage capacity is omitted. Apple July 1994 Service Guide gives conflicting 80 MB and 180 MB values for Performa 460 in different tables; those are not silently assigned to this model. Performa 460-series bundles use a manual-insert SuperDrive
Expansion slots
One LC III processor-direct expansion slot. Ethernet requires an expansion card; no built-in Ethernet
Display
Screen
None built in
Connections
Ports
Headphone jack
Back ports
One ADB, DB-15 video, DB-25 SCSI, printer and modem serial ports, omnidirectional microphone input and speaker output. No external floppy connector
External displays
Separate monitor required. Apple specifies 512 × 384 and 640 × 400 at 16-bit colour, plus 640 × 480 and 832 × 624 with colour depth depending on VRAM capacity
Keyboard and mouse
Performa 460-series bundles include an ADB keyboard and mouse and may include a monitor and modem; the museum photo shows the Performa 460-labelled computer alone. Exact LC III+ supplied-accessory bundle is unpublished in the recovered support record
Design and power
Type
Compact
Operating system
macOS
Size and weight detail
Apple LC III+ record publishes 8.8 lb and 2.9 inches high × 12.2 inches wide × 15.3 inches deep. Unpublished metric measurements are omitted
Power supply
Apple LC III+ support lists 100–240 V, 47–63 Hz, 50 W maximum, 0.42 A and 171 BTU/hour. These are maker ratings, not measured consumption. 3.6 V lithium clock battery
In the box
Original System 7.1 with System Enabler 003 v1.1. Apple introduction date 18 October 1993 is not established as an actual first retail sale, so released is omitted
Configurations
Processor
Memory
Storage
68030 33 MHz (Macintosh LC III+)
4 MB
–
Pros and cons
Pros
+Memory expandable to 36 MB
+Dedicated video memory with a VRAM upgrade slot
+Socket for an optional floating-point coprocessor
