HP 507X High Yield Original LaserJet Toner – Black | CE400XPage YieldThe HP507X (CE400X) high-yield black toner cartridge delivers approximately 11,000 pages, based on ISO/IEC 19798 testing conditionsCompatibility (Printer Models)This toner is designed for use with various HP LaserJet printers, primarily enterprise and Pro models. Confirmed compatibility across multiple reputable sources includes:HP Enterprise models:LaserJet Enterprise 500 Color M551nLaserJet Enterprise 500 Color M551dnLaserJet Enterprise 500 Color M551xhColor Flow MFP M575cEnterprise 500 Color MFP M575dnEnterprise 500 Color MFP M575f HP Pro models:LaserJet Pro 500 Color MFP M570dnLaserJet Pro 500 Color MFP M570dw