High Yield: Black 1600 pages per toner cartridge at 5% coverage (letter/A4) Compatible with Pantum Printers: Pantum P2500 series, Pantum M6550 series, Pantum M6600 series, Pantum P2502W series, Pantum M6552NW series, Pantum M6602NW series Package includes: 2 Pack PB211ev Black Toner Cartridge Favorable price: we have our factory to development and creative our products, so we can provide the best quality at the lowest cost.