Includes: 1 Pack 52D1X00 Black Toner Cartridge. Compatible Printer Models: MS811dn Printer MS811dtn Printer MS811n Printer MS812de Printer MS812dn Printer MS812dtn Printer High Page Yield: - High capacity provides more pages to be printed - Approx 45,300 pages per Black Cartridge at 5% coverage.(Letter/A4) Specialists in Print: - Clear and natural printouts - Ensure that your daily printing meets exceptional quality - We offer uniform powder, not easy to drop powder leakage Multi-Scenario Application:Convenient and cost-effective for daily use such as School, Business, Office, Hospital and Home. We would provide attentive customer service: If you have any questions, or the product you received is defective, please contact us as soon as possible, we are honored to help you.(“Order List” -> Search "Order ID -> Click “Contact Seller”.)