![Amazon.com: 661-5944 AMD Radeon HD 6750M 512MB for iMac A1311 21.5" Mid 2011 video card 216-0810005 109-C29557-00 : Electronics Amazon.com: 661-5944 AMD Radeon HD 6750M 512MB for iMac A1311 21.5" Mid 2011 video card 216-0810005 109-C29557-00 : Electronics](https://m.media-amazon.com/images/I/A1G6zCabQ0L.jpg)
Amazon.com: 661-5944 AMD Radeon HD 6750M 512MB for iMac A1311 21.5" Mid 2011 video card 216-0810005 109-C29557-00 : Electronics
![AMD Radeon HD6750 512MB Graphics Card for Apple iMac 21.5" A1311 Mid 2011 (109-C29557-00) for sale online | eBay AMD Radeon HD6750 512MB Graphics Card for Apple iMac 21.5" A1311 Mid 2011 (109-C29557-00) for sale online | eBay](https://i.ebayimg.com/images/g/o8oAAOSwGT5kCeY1/s-l1600.jpg)
AMD Radeon HD6750 512MB Graphics Card for Apple iMac 21.5" A1311 Mid 2011 (109-C29557-00) for sale online | eBay
![For iMac A1311 21.5" Mid 2011 AMD Radeon HD 6750M 512MB Upgrade Nvidia K1100m 2GB GDDR5 Video Graphics Card MC309LL/A MC812LL/A - AliExpress For iMac A1311 21.5" Mid 2011 AMD Radeon HD 6750M 512MB Upgrade Nvidia K1100m 2GB GDDR5 Video Graphics Card MC309LL/A MC812LL/A - AliExpress](https://ae01.alicdn.com/kf/Hd009ad9a57dd4fe288b03d792f1c18ccN.jpg_640x640Q90.jpg_.webp)
For iMac A1311 21.5" Mid 2011 AMD Radeon HD 6750M 512MB Upgrade Nvidia K1100m 2GB GDDR5 Video Graphics Card MC309LL/A MC812LL/A - AliExpress
![Amazon.com: Original Graphics Card GPU Replacement, for iMac Late 2011 21.5-Inch A1311 Core i3 3.1 Desktop PC MC978LL/A, for AMD Radeon HD 6750M GDDR5 256MB 109-C29557-00 MXM GPU Video Board Repair Parts : Amazon.com: Original Graphics Card GPU Replacement, for iMac Late 2011 21.5-Inch A1311 Core i3 3.1 Desktop PC MC978LL/A, for AMD Radeon HD 6750M GDDR5 256MB 109-C29557-00 MXM GPU Video Board Repair Parts :](https://m.media-amazon.com/images/I/7124gOqbNSL.jpg)