True Image brand HP58X toner replacement comes with a smart IC chip. It replaces HP M404 Toner M428 Toner CF258XC HP 58A 58X Toner Cartridges. It’s a complete product so you don’t have to take off the chips from your original HP toner cartridges in your HP printers. It can save you time during the installation process. So much the better for you! This 2-Pack comes with two HP 58X black toner cartridges. So you can use one and keep the other one as a standby.