Item Description: This power adapter recharges the lithium polymer battery while the system is off, on, or in sleep mode. It also powers the system if you choose to operate without a battery. Compatible with MacBook and 13-inch MacBook Pro Compatible with Apple adapter model # : A1330 A1184 A1344 Apple Model #: A1344 Input: 100-240V 50-60Hz 1.5A Output: 16.5V 3.65A 60W Package Included: 1 x Apple MagSafe 60W Power adapter (Brand new but no retail box)