I had to get one too. I just lost mine somewhere. I got it directly from the manufacturer.
My Laptop charger has died and, while the original lasted a couple years, the replacement I got that was the most similar I could find died in a couple months and apparently I am not alone in this problem going by the reviews on the Amazon page so I was hoping someone could point me in the right direction for a replacement.
Input: AC 100-240V, 50/60Hz
Output: 19.5V 6.15A 120W
for an MSI GE60 2PC