This is a MacBook 13" Core Duo 1.83 GHZ logic board replacement. This is a pull from a working unit and comes with our standard 1 year warranty. This will work in both the black and white MacBook 13" units. This will NOT work in a Core 2 Duo unit, only the CoreDuo. Have a dead board that you need repaired? Try our Logic Board repair program! If we can't fix it, you don't pay!