· With Latest Patent chips: S SMARTOMNI 58X toner cartridges feature pre-installed chips designed to save time and avoid common printing problems. Our advanced chip can help with color adjustment to ensure vibrant colors and rich blacks. And also allows your printer to accurately monitor toner levels to reduce waste and maximize print throughput. Stay informed on when to order replacements and keep your printing process smooth and uninterrupted.· Compatible with: HP Pro M404 M404n M404dn M404dw; HP Pro MFP M428 M428dw M428fdn M428fdw; HP Enterprise MFP M430f M406dn; HP M304n M304dn Printer.· What's in the box: 2 packs of 58X Black toner cartridges WITH CHIP version (2 x 58X CF258X black toner) compatible with HP M404n MFP M428fdw toner.· High Page Yield: Up to 10,000 pages per 58X CF258X Black toner cartridge (Letter/A4, at 5% coverage). Also available for 58A CF258A.· Excellent Performance: All S SMARTOMNI 58X CF258X with Chip black toner cartridges are manufactured in strict accordance with a high-quality standard and manufacturing process to ensure count on high-quality, reliable printing and full compatibility with HP Printers along with Quality Printout.