Please check your print number is 821-1480-A , Fit Macbook Pro 13″ inch 2012 A1278 (not fit 2008 2009 2010 2011) .

Includes:
– Hard drive cable + IR sensor/sleep detector

Compatible Model:
MacBook Pro 13” Unibody A1278 Mid 2012 MD101, MD102
-macbookpro9,2 mid 2012: MD101LL/A (2.5 GHz core i5)
-macbookpro9,2 mid 2012: MD102LL/A (2.9 GHz core i7)

Identifying Numbers:
– Part #: 923-0741,923-0104
– Printed Part #: 821-1480-A