1. 256MB graphics card board for iMac A1312 A1311 2010 2009 109-B80357-00 216-0729051 HD4670 HD4670M. 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.
