Macintosh LC 550

Introduced: February 1994
Terminated: March 1995


Running on the Motorola 68030 processor at 33Mhz, the Macintosh LC 550 came with a hard drive ranging from 80 to 160MB.


The Macintosh LC 550 was the replacement for the LC 520 and was virtually identical with the exception of the faster processor.  It was also sold as the Performa 550 and Performa 560.


Macintosh LC 550


Processor Speed: 25 MHz
Cache: 0.5 k L1
System Bus: 25 MHz
Hard Drive: 80 - 160 MB
Media: 2x CD-ROM, 1.44 MB floppy
Weight and Dimensions (US): 40.5 lbs., 17.9” H x 13.5” W x 16.5” D
Weight and Dimensions (Metric): 18.4 kg, 45.5 cm H x 34.3 cm W x 41.9 cm D
Original Mac OS: System 7.1 (System Enabler 403 v1.0)
Maximum Mac OS: Mac OS 7.6.1
Firmware: Macintosh ROM
Model Number:—
Logicboard RAM: 4 MB
Maximum RAM: 36 MB
Type of RAM Slots: 1 - 72 pin SIMM
Minimum RAM Speed: 80 ns
Interleaving Support: No
Graphics Card: None
Graphics Memory: 512k - 768k
Built-in Display: 14” RGB
Display Connection: DB-15
Expansion Slots: 1 - LC PDS
Hard Drive Bus: SCSI
Backup Battery: 3.6 V Lithium
Max Watts: 40 W
Ethernet: None
Modem: None
ADB: 2
Serial: 2
SCSI: 1 - DB-25
USB: None
FireWire: None
Audio In: 1 - 3.5-mm analog input jack, 1 - Built-in microphone
Audio Out: 2 - 3.5-mm analog output jacks, 2 - Built-in speakers


Introduced in February 1994, the Macintosh LC 550 was discontinued in March 1995.



  • You made a very good description here of the product. I think that it was very good in it’s heyday. Asigurari locuinte

    selena had this to say on Oct 27, 2011 Posts: 35
  • Replica watches are the facsimile or prototype of their real counterparts. They are made following the exact designs and looks of the original watches. The difference lies in the material used to make them. Unlike Breitling Replica. Omega Replica, original watches are made of genuine stuffs like gold and platinum and are studded with real diamonds, as well.
    However, materials used to make Replica Tag Heuer Watches are worthwhile. They do not appear inferior to the original watch either in grandeur or longevity. Replica Rolex Watches  on the other hand belong to a category which at best can be called cheap and unworthy. They never give you your desired level of satisfaction. A fake watch is never an exact replacement of a designer or brande

    linsanguo had this to say on Nov 21, 2011 Posts: 29
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