Model: For Macbook Pro 13" A1278. Compatible Model: Mid 2009 For Macbook Pro 5,5 13" A1278 EMC 2326 MB990LL/A 2.26 GHz "Core 2 Duo". Mid 2009 For Macbook Pro 5,5 13" A1278 EMC 2326 MB991LL/A 2.53 GHz "Core 2 Duo".
eBay