Dataproducts DPC0034 Remanufactured Inkjet Cartridge for Lexmark #28/34, Black Assembled in USA Premium ink cartridges that meet or exceed OEM quality, page yield, and reliability. For online cartridge support, please visit www.inkjetcartridgehelp.com 1-year warranty, 100% satisfaction guarantee: The use of this Dataproducts print cartridges does not void your printer's warranty Compatible Hardware: Lexmark Photo Multifunction P4330, P4350, P6250, P6350; Multifunction X2500, X2530, X2550, X3350, X3530, X3550, X4530, X4550, X5070, Plus Page Yield: 550