HP 212A Original LaserJet Toner Cartridge – Cyan | W2121APage Yield & SpecsThe HP 212A (W2121A) cyan toner cartridge is rated to yield 4,500 pages (at 5% coverage, ISO/IEC 19798)Compatibility (Supported Printers / Models)This cyan toner (W2121A / 212A) is compatible with various HP Color LaserJet Enterprise / Flow / MFP models. Confirmed models include:HP Color LaserJet Enterprise M554dn HP Color LaserJet Enterprise M555dn / M555x HP Color LaserJet Enterprise MFP M578dn, M578f HP Color LaserJet Enterprise Flow / MFP M578c, M578z HP also mentions M578e in some compatibility listings