Most of Apple's newer computers are capable of using either symmetric or asymmetric 16Mb chips. However, the LCIII, LC475, LC520, LC550, P275, P450, P460, P466, P467, P550, and P560 require symmetric memory. This is only an issue when dealing with SIMMs which use 16Mb chips. SIMMs built with Symmetric chips are indicated by an "L" suffix on the part number.
This computer comes with 1024K ROMs and an Apple 1.44MB SuperDrive that uses high-density floppy disks and reads, writes, and formats Macintosh, Windows, MS-DOS, OS/2, and ProDOS disks.
Serial Port with the phone icon supports synchronous modems, with handshaking on both output and input supported.
In the LC III and P450 sound output is mono.
In the LC 520, LC 520 CD, P550, and P560 sound output is 8-bit stereo.
In the P460, P466, and P467 sound output is mono.
This computer has an international power supply.
This computer contains a 32-bit 030 LC Processor Direct Slot (PDS).
The Performa 560 is sold by Money Magazine with a special bundle of financial software.