1. Battery connector flex cable replacement for Dell Precision 7730 M7730 DAP20 RWC40 DC020031000. 2. Replace your broken or unusable item with a new one. 3. Each item has been checked and in good condition before shipping. 4. Completely fit and work. 5. Professional installation is highly recommended. We will not be responsible for any damages to your device that you may cause during the changing of replacement parts.