Speedy Inks Compatible Ink Cartridge Replacement for Lexmark 150XL 14N1614 High Yield (Black, 2-Pack) For use in Lexmark: Pro715, Pro915, S315, S415, & S520 Color: Black | Pack of 2 | Page Yield: 750 Shelf Life: 36 Months Our compatible replacement for the 150XL contains a 'smart chip' that makes internal adjustments to optimize print performance and monitors your ink levels for increased cost effectiveness. The use of aftermarket replacement cartridges and supplies does not void your printer's warranty