Pulled From Working Unit

Apple Video Card ATI Radeon HD 5750 1GB GDDR5 SDRAM for iMac 27" Mid 2010 

APPLE PART # 661-5578

COMPATIBILITY:

iMac (27-inch, Mid 2010) 27" LCD;3.2 GHz Core i3 / 2.8 Ghz Core i5 

MC510LL/A, MC511LL/A A1312

Does not include heatsink