This is a hard drive cable with the infrared sensor for the 13" MacBook Pro Unibody models.
Hard drive cable connects the hard drive to the logic board.
All parts tested and working just like they were when you bought your MacBook..
Part Numbers: 922-9771.
Printed Number: 821-1226-A.
<li class="maclist-li"><h4>Compatible with : </h4>
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Pro Unibody 13 (A1278, Early 2011/ Late 2011).