This is a replacement heat sink for the MacBook Unibody 13 released in Early 2011 / Late 2011.
This is the CPU heatsink that keeps your CPU nice and cool in that slim MacBook Unibody 13.
If your computer seems to be running pretty hot, and it's not the fan, replacing this might be recommended!
All parts tested and working just like they were when you bought your MacBook Unibody 13..
Part Numbers: 661-4945.
<li class="maclist-li"><h4>Compatible with : </h4>
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Unibody 13 (A1278, Early 2011 / Late 2011).