Replace your Hard Drive Cable!
Connects hard drive, sleep light, and IR sensor to logic board. Identify by 821-0442-A and 632-0423-A printed on cable.
- 2.16 or 2.33 GHz (Model A1211) 15" MacBook Pros
Option 1 / Used, fully tested
Lifetime Warranty - This iFixit product is guaranteed to function as long as you have it.