OEM Lexmark Vizix 14N1068 (#100XL) High Yield Black Ink Cartridge.
I haven't used this particular product just yet, but I have used the same one in the past and it was fine. What I was especially impressed with was the speed of the shipping- next day, which I did not sign up for!
March 2, 2014
The cartridge was easy to install. Prints clear, distinct characters. I am pleased.
August 25, 2013