Yeah, that was the one. I had a hard time tracking down the proper link, but it's on the page you linked: http://www.everymac.com/upgrade_cards/sonnettech/cresc

Yeah, that was the one. I had a hard time tracking down the proper link, but it's on the page you linked: http://www.everymac.com/upgrade_cards/sonnettech/crescendo_g3_l2/crescendo_g3_l2_500.html http://www.everymac.com/upgrade_cards/sonnettech/crescendo_g... It's clever and insane at the same time. Most processor upgrades physically replace the processor, but this one just bypassed it.