Apple 661-6111 Hard Drive, 500GB, 5400, Recovery - 13-15inch MacBook Pro Early 2011 - A1278, A1286. 661-6111 for A1278 i5 2.3GHz Early 2011, A1278 i7 2.7GHz Early 2011, A1286 i7 2.0GHz Early 2011, A1286 i7 2.2GHz Early 2011, A1286 i7 2.3GHz Early 2011. Apple Hard Drives for MacBook Pro (13-inch Early 2011), MacBook Pro (15-inch Early 2011).
