This offer includes (2) W1380X / 138X high yield black toner cartridges; they replace the HP W1380X / HP 138X high yield black toner series. This toner cartridge is compatible with HP LaserJet Pro MFP 3101FDW, MFP 3101sdw, 3001dw printers. Please note, retail packaging may vary and these cartridges will only work with printers purchased within the United States and Canada. The use of compatible replacement printing supplies does not void your printer warranty. HP does not manufacture our remanufacture toner cartridges.