Replacement ac adapter Apple 18.5V 4.6A (rectangle) P/N: A1172 Input: AC 100V-240V (worldwide use) Output: DC 18.5V 4.6A Power: 85W Outlet: 2-prong Connecter size: magnetic 5-pin Replace Part Number: A1172, 661-3994, ADP-90UB, 611-0377, 661-4259, MA357LL/A Related Products: Apple 24V 1.875A (rectangle) 9.5*3.5 Apple 24V 1.875A (square) 7.7*2.5 Apple 24.5V 2.65A (rectangle, square) 7.7*2.5 Apple 16.5V 3.65A (rectangle, square) magnetic 5-pin Apple 18.5V 4.6A (square) magnetic 5-pin Brand New Replacement Product works as genuine parts, 100% Compatible!! Remark: Power cord is not included, if you need, please contact us, we will provide the one which fits your market!! Full 12 months warranty!!