Used, AST/Orange Micro Mac86 board for the Macintosh SE. The Mac86 was designed for the Macintosh SE PDS slot, and integrated a 10 MHz Intel 8086 CPU. The Mac86 did not include its own RAM, instead sharing up to 640 KB of the host Macintosh's RAM. A floppy drive controller was integrated, including an external bracket to connect an Apple PC 5.25 Drive.