,,,,We are the wholeseller of all kinds of laptop adapters for Sony, Toshiba, HP, Dell, Acer, Asus,Apple, Gateway, Adevnt,NEC etc. If you have any interest in them, please feel free to contact us! For brand and Model: IBM(P/N 02K6543) Output voltage/current: 16V/3.36A Power: 56W Output DC connector size:5.5*2.5 yellow At the sametime, we aslo supply the laptop adapter for 16V/3.36A,16V/3.5A,16V/4.5A,20V/3.25A,20V/4.5A,16V/7.5A etc You inquiry will be highly appreciated!