Purchase Notes: For your convenience, before purchasing please refer to the Product Description as belowCompatible Printers: Replacement for HP Laserjet Enterprise 500 color M551 M551N M551DN M551XH M575f M575c M575dn M570dwHigh Capacity: BK 11,000 Pages,CMY 6,000 Pages at 5% Coverage (Letter /A4);Reliable Quality: LCL 507X 507A cartridge uses high quality toner, toner particle size distribution, good mobility, high transfer rate, resulting in a clear image and high gloss print effect; Printing efficiency is high, waste powder rate is low, so as to ensure sufficient page yield.Condition: Our compatible cartridges from ISO 9001/14001; STMC; CE; ROHS Certified factory.LCL compatible supplies provide high-quality raw materials to ensure printing effect, and strict management ensure the stable qualityIndividual Package: LCL product is packaged in separate box, suitable for long-term storage, to avoid product damage or ink/toner leakage and other problems.Strict Testing: All products are tested in three stages: Stage 1 - reliability test of raw materials; Stage 2 - finished product color fidelity test; Stage 3 - strict double test: print testing during the manufacturing phase and final testing before leaving factory