The article NOR Gate is still unfinished and may be lacking detailed general information, screenshots, and crafting recipes. Please expand the article and remove the {{unfinished}} tag once the article can be considered complete.
NOR Gate contains information about the RedPower mod.
There is one output side and 3 input sides. The output side is on when all of the inputs are off. If any input is on, the output is off. Holding shift and right-clicking with a Screwdriver or Sonic Screwdriver cycles through options to disable some inputs. Disabled inputs have no red in their groove; they can thus be distinguished from active inputs, which have bright red in their grooves.