1. Replacement motherboard For Macbook Pro Retina 15 inch A1398 (2014) ME294 i7 4850 2.3GHZ 16G (DDR3 1600MHz)
2. Replace your broken or unworkable part with a new one
3. Each item has been checked and in good condition before shipping
4. Completely fit and work
5. Highly recommend professional installation. We will not be responsible for any damages to your device that you may cause during the changing of replacement parts