Macintosh LC 550

The Macintosh LC 550 (codename: "Hook 33") replaced the LC 520 in February 1994, and was discontinued in favor of either the LC 580 on the lower end or the PowerPC-based Power Macintosh 5200 LC models at the higher end. The Performa variants were in fact introduced earlier, the 550 in October 1993 and the 560 in January 1994, and remained available for more than a year longer, until April 1996.