OCS (1.2 and 1.3 models) or ECS (1.3 and 500+ 2.04 models) chipset. ECS revisions of the chipset made PAL/NTSC mode switchable in software. Sound: 4 hardware-mixed channels of 8-bit sound at up to . The hardware channels have independent volumes (65 levels) and sampling rates, and are mixed down to two fully left and fully right stereo outputs. A software controllable low-pass audio filter is also included. 512 KB of chip RAM (150 ns access time) AmigaOS 1.2 or 1.3 (upgradeable up to 3.1.4 if 2 MB of RAM are installed) One 3.5" double-density floppy disk drive is built in, which is completely programmable and thus can read IBM PC disks, standard Amiga disks, and up to with custom formatting (such as Klaus Deppich's diskspare.device). Uses (5 rotations/second) and . Built-in keyboard A two-button mouse is included.
OCS (12 and 13 models) or ECS (13 and 500+ 204 models) chipset ECS revisions of the chipset made PAL/NTSC mode switchable in software Sound 4 hardware-mixed channels of 8-bit sound at up to  The hardware channels have independent volumes (65 levels) and sampling rates and are mixed down to two fully left and fully right stereo outputs A software controllable low-pass audio filter is also included 512 KB of chip RAM (150 ns access time) AmigaOS 12 or 13 (upgradeable up to 314 if 2 MB of RAM are installed) One 35" double-density floppy disk drive is built in which is completely programmable and thus can read IBM PC disks standard Amiga disks and up to with custom formatting (such as Klaus Deppich's disksparedevice) Uses (5 rotations/second) and  Built-in keyboard A two-button mouse is included