1. Input: AC100 - 240V 1.5-0.9A 50-60Hz 2. Output: 16V 4.5A 3. Output power: 72W 4. Output Tips: 5.5x2.5mm 5. Compatible Laptop Models: For IBM ThinkPad 1400 Series, ThinkPad 1400, ThinkPad 1400-2621, ThinkPad 1400-2651, ThinkPad 1500 Series, ThinkPad 1500, ThinkPad 1500-2621, ThinkPad 1500-2651, ThinkPad 172x Series, ThinkPad 172x, ThinkPad 235 Series, ThinkPad 235, ThinkPad 240 Series, ThinkPad 240, ThinkPad 240-1161, ThinkPad 240-1171, ThinkPad 240-2609, ThinkPad 240-2666, ThinkPad 240-2667, ThinkPad 240X, Thinkpad240X 2609, ThinkPad 240Z, ThinkPad 290 Series, Acer: Extensa510 Series, Extensa515,TravelMate 510 Series, TravelMate510,TravelMate 512DX,Travelmate 512t, AJP: 5100 Series, 5100c For IBM ThinkPad T41 T41p T42 T42p T43, ThinkPad, R32, R50, X23, X24, X30, T22, T23, T30, R51, T20

http://olla.gr/ac-adapter-16v-4.5a-72w-for-thinkpad-notebook-output-tips-5.5x2.5mm-black-el/