Compatible Replacements Included: 4 Pack Black CF280X / 80X Toner Cartridge Replacement High Yield Compatible with: the following printers: 400 M401a, 400 M401dn, 400 M401dne, 400 M401dw, 400 M401n, 400 M425dn, 400 MFP M425dw Delivers 6900 pages Average cartridge Page Yield* in accordance with ISO IEC 24711 This is the high yield version of comp HP 80A / HP 80A compatible toner cartridge. *at 5% coverage (ISO/IEC standard) All compatible replacement cartridges are quality tested to ensure long-lasting use and bold, vivid print on every page. Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.