Apple 661-5843 Power Adapter, 85 W - 15inch-17inch MacBook Pro Early Late 2011 - A1286, A1297. 661-5843 for A1286 i7 2.0GHz Early 2011, A1286 i7 2.2GHz Early 2011, A1286 i7 2.3GHz Early 2011, A1297 i7 2.2GHz Early 2011, A1297 i7 2.3GHz Early 2011, A1286 i7 2.2GHz Late 2011, A1286 i7 2.4GHz Late 2011, A1286 i7 2.5GHz Late 2011, A1297 i7 2.2GHz Late 2011, A1297 i7 2.3GHz Late 2011. Apple Power Adapters for MacBook Pro (15-inch Early 2011), MacBook Pro (17-inch Early 2011), MacBook Pro (15-inch Late 2011), MacBook Pro (17-inch Late 2011).
661-5843 Apple 85 Watts Magsafe Power Adapter for All Macbook Pro Unibody 13-inch 15-inch & 17inch A1278, A1286, A1297