Description Reviews Replaces manufacturer part numbers: 52D1X00,521X. Fits models: MS811DN,MS811DTN,MS811N,MS812DE,MS812DN,MS812DTN Product Specification Condition OEM Equivalent with new & recycled components. Warranty One Year Warranty PageYield 45000 Color(s) Extra High Yield Black Replaces the Following Manufacturer Numbers: 52D1X00 521X Compatible with the Following Printer Models: MS811DN MS811DTN MS811N MS812DE MS812DN MS812DTN