A1312: 2009 2010 2011 （HD6970Mneed to replace the X-bracket）
Attention :
★★★ The A1311 and A1312 "Core 2 Duo" processors from 2009 are not compatible with these cards!
★Before installing these graphics cards, you need to replace the X bracket(only when the previous graphics card is HD6970M) ,otherwise the graphics card will be short-circuited and damaged, and the buyer will be responsible for the problems caused by this；
★After installing the graphics card in some iMac,there will be no startup screen, and the brightness will be slightly darker than before. These are normal phenomena,buyers who mind, please do not buy! These problems can be solved by installing OpenGL / Opencore；
★Before shipment, we have flashed the VBIOS for iMac and Fully tested；
★If you have any questions, pleasecontact usat any time.
