Compatible with:MC118LL/A 2.53GHz Core 2 Duo 15-inch Macbook Pro (Unibody-Mid 2009-A1286)MB985LL/A 2.66GHz Core 2 Duo 15-inch Macbook Pro (Unibody-Mid 2009-A1286)MB986LL/A 2.8GHz Core 2 Duo 15-inch Macbook Pro (Unibody-Mid 2009-A1286)MB604LL/A 2.66GHz Core 2 Duo 17-inch Macbook Pro (Unibody-Early 2009-A1297)2.93GHz Core 2 Duo 17-inch Macbook Pro (Unibody-Early 2009-A1297)MC226LL/A - MC227LL/A 2.8GHz Core 2 Duo 17-inch Macbook Pro (Unibody-Mid 2009-A1297)3.06GHz Core 2 Duo 17-inch Macbook Pro (Unibody-Mid 2009-A1297)