The SE was the first compact Mac with a built-in fan. Introduced along with the Mac II in March 1987, the SE came with 1 MB of RAM, one or two double-sided 800K floppies, and space to mount an internal SCSI hard drive (the second drive bay held either a hard drive or second floppy – no room for both, although that didn’t stop some people from creating a bracket to mount a hard drive in a two-floppy SE).