TRUE IMAGE HECE400X-B507X Compatible Toner Cartridge Replacement for HP CE400X (Black) Premium quality toner with easy to install design Estimated page yield of 11,000 pages @ 5% coverage based on ISO/IEC 19752 (letter/A4 size) Compatible with HP Printers: LaserJet Enterprise 500 color M551dn, M551n, M551xh , MFP M575dn, MFP M575F, LaserJet Pro 500 color MFP M570dn, 570dw, LaserJet Enterprise 500 color Flow MFP 575c 1-pack True Image high yield black toner cartridge replaces HP CE400X Warranty: Lifetime 100% satisfaction guarantee