The one for my laptop died. It is a 4 year old M140XPS. It is a round end that goes into the computer but is the larger of the 2 versions that I am familiar with. I know I could find one on ebay but was checking here first to see if anyone had one in town or know somewhere in town that would have one.
65W-AC
output is 19.5V 3.34A
input is 100-240V 50-60Hz 1.5A