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 7.1P3 (System Enabler 332)
Maximum Mac OS: Mac OS 7.6.1
Logicboard RAM: 4 MB
Maximum RAM: 36 MB
Type of RAM Slots: 1 - 72 pin SIMM
Minimum RAM Speed: 80 ns
Graphics Card: None
Graphics Memory: 512k - 768k
Built-in Display: 14" RGB (640x480)
Display Connection: DB-15
Expansion Slots: 1 - LC PDS
Hard Drive Bus: SCSI
Backup Battery: 3.6v Lithium
Max Watts: 40 Watts
Ethernet: None
Modem: None
ADB: 2
Serial: 2
SCSI: DB-25
USB: None
FireWire: None
Audio In: mono 8 bit (built-in mic)
Audio Out: mono 8 bit (built-in speaker)
History: The LC 550 replaced the LC 520 in February 1994. It was identical to the 520, but had a 33 MHz 68030 processor. All other specs are the same. It sold for $1,200 U.S. and was also sold as the Performa 550, and 560.