Vintage Apple Macintosh Quadra “Cyclone/Tempest” Prototype Computer. Circa 1993/1994. Has a 68040 on board & a 601 upgrade board. 500mb hard drive, 20mb ram, 3.5″ floppy drive, & Caddy loading CD-ROM drive. Missing one case foot. This system has been tested & appears to be in working order. It boots to the desktop with Macintosh OS 7.6.1.