Released at the same time as the Mac II, (March, 1987) the Mac SE further addressed the issue of expansion. It came in a new platinum case, had an expansion slot, and included a bay for either a second internal floppy drive, or an internal hard drive. The Mac SE had 256k ROM, and 1 MB of RAM, expandable to 4 MB. It included a SCSI port, and was also one of the first Macs to include an Apple Desktop Bus (ADB), which allowed for up to 16 input devices. It sold for $2,898 for a dual floppy configuration. Beginning in 1989 the SE included a Super Drive, which could read and write on High Density disks. The SE was discontinued in October of 1990.

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