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iMac 2009 to 2011 (A1311/A1312) Upgrade Guide – MacintoshMen
Amazon.com: Tarjeta gráfica de vídeo original para Apple iMac finales de 2009 A1311 Core 2 Duo 3.06 21,5 pulgadas Desktop PC MB950LL/A MB950, AMD ATI Radeon HD 4670 GDDR3 256MB, MXM VGA