Performa 550/560: Labeled As Macintosh LC 520 (7/94)
When I opened up my Performa 550/560 and looked at the product label, I noticed that it is labeled as a Macintosh LC 520.
How can I tell if it is actually the Performa?
To determine if your computer is a Performa, run MacCheck¬ to verify whether the processor clock speed on the computer in question is 25 MHz (LC 520 speed) or 33 MHz (Performa 550/560 speed).