Board Thread:Questions and Answers/@comment-68.195.127.46-20140311012153/@comment-23270394-20140312225414

A single mass fabricator should have no more then 1953 high voltage arrays, since that much power will produce 1 uu/ ticks, so increasing past that won't increase the speed. Other then that, there really is no limit. As for setups, assuming you don't want to use MSFUs or recyclers, it would probably be best to wire 20 arrays into each mass fabricator, so that you don't have some of them taking all the power, and others that are not getting enough.