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Very early EVT (Engineering Validation Test) prototype of the Power Macintosh 7500 logic board, codename "TNT," measuring 13˝ x 11˝, with early bodge wires and chips, marked on the board: "Apple Computer, Inc. © 1994, 820-0564-05 TNT Mother Board, EVT-3." Includes a prototype A/V module with RCA and S-Video ports. Tested and functional, but requires a Power Macintosh 7500 power supply and ROM SIMM or Power Macintosh 7500 ROM chips to be soldered to the board (not included) in order to boot properly. In fine cosmetic condition.
The Power Macintosh 7500, released in August 1995, was a mid-range desktop computer featuring a swappable PowerPC 601 processor, allowing for easy upgrades to newer CPUs. The 7500's easy-to-open case design, dubbed 'Outrigger' by enthusiasts, was part of Apple’s transition toward more modular and expandable Mac systems. The computer's full composite video and S-Video input capability—features demonstrated in the prototype A/V module—made it popular for video conferencing applications.
