(1) Part Number: 821-2049-A; (2) Item model number:923-0104-a; (3) Compatible Model: MacBook Pro 13" A1278; (4) Compatible Model Number : MD101LL/A,MD102LL/A; (5) Compatible Subfamily : 2012; DO NOT FIT with:(pls check B01MR2KIST if you need it.) Printed NO 821-0645 for A1278 13.3inch 2008 mb466/mb467 Printed NO 821-0814 for A1278 13.3inch 2009-2010 922-9062 7105 mb990/mb991 mc374/mc375v Printed NO 821-1226 for A1278 13.3inch 2011 922-9771 mc700/mc72 md313/md314 Something wrong happaned to your macbook laptop, it seems look like: (1)froze suddenly (2)Internal hard drive disk not recognized, not respond any more (3)freezes takes long to start up (4)flashing folder icon on boot (5)got the flashing question mark folder, a sure sign of death when the computer turned back on (6)didn't boot up properly and the screen displayed a folder with a question mark! Restarting again did not make the folder with question mark go away (7)boot to a gray screen or keep freezing when it did boot. (8)A new drive did not solve the problem. Pls feel free to contact with us if you have any questions .

?About Us?SUNMALL are specialized in laptop accessories for many years ,we sale thousands of keyboard out every yard and less 1% Customer complaints ,you also can contact with us when you need palce an big order,we would give you the most competitive price, hope the long business with you. Compatible Model: MacBook Pro 13" A1278;. Part Number: 821-2049-A;.