MacBook Pro 13" Unibody Late 2011
The Late 2011 version of MacBook Pro 13" Unibody is virtually identical to the Early 2011 model except for a CPU and graphics upgrade. It features a Core i5 or Core i7 processor with PC3-10600 RAM. It also sports the new Thunderbolt standard allowing 10 Gbps transfer speeds in both directions.
The most common repairs with the MacBook Pro 13" Unibody for Late 2011 are replacing a dead battery or upgrading the hard drive or RAM. The MacBook Pro 13" Unibody Late 2011 Memory Maxxer RAM Upgrade Kit includes all the parts and tools you need to upgrade to 16 GB of RAM.
Once you've bought your parts and tools, check out iFixit's MacBook Pro 13" Unibody for Late 2011 repair guides for step-by-step instructions on how to make the fix.