AURORA&trade; 16V 4.5A 72W Laptop AC Adapter for IBM/Lenovo Thinkpad R30 Series and Thinkpad X Series R30-2656 R31 R32 R33 R40 R40e R41 R42 R50 R50e R50p R51 R51e R51p R52 R52-1958 R52e R52p T20 T21 T22 T23 T24 T26 T2X T30 T31 T31p T32 T33 T3x T4 T40 T40p T41 T41p T42 T42p T43 T43p T4X X20 X21 X22 X23 X24 X30 X31 X32 X4 X40 X41 X41T 10Ft Power Cord / Notebook Battery Charger