This is a MacBook Pro 17 Unibody hard drive cable.
If your hard drive is having trouble powering up or reading data properly, you may have a damaged cable and need this.
The 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: 922-8920, 922-9823.
Printed Number: 821-0791-A, 821-1200-A.
<li class="maclist-li"><h4>Compatible with : </h4>
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Pro Unibody 17 (A1297, Early 2009/ Mid 2009/ Mid 2010/ Early 2011/ Late 2011).