Sunvalley 2 GB Grafikkarte GPU Upgrade Ersatz, für for Apple iMac Mitte 2011 A1312 27 Zoll
iMac 2011 GPU upgrade to NVIDIA 770M with new VBIOS - YouTube
Amazon.com: Sunvalley Original 2GB Graphics Card GPU Upgrade Replacement, for Apple iMac 2011 27 Inch A1312 i5 i7 Desktop PC Computer, for AMD Radeon HD 6970M 109-C29657-10 MXM Video Board Part : Electronics
iMac 2011 GPU upgrade to NVIDIA 770M with new VBIOS - YouTube