Steve Wozniak-signed Apple 1 motherboard expected to achieve up to $800,000 at auction — fully working board also comes with a signed letter from Steve Jobs from Latest from Tom's Hardware on 2026-09-03 10:15 (#784V8) A 'beautifully preserved in working condition' Apple-1 computer motherboard signed by Steve Wozniak with a letter signed by Steve Jobs is up for auction next month at Bonhams in New York.