LJ 1320, 2550, 4100, 4300, 5100, 9000, 9040, 9050, 9055, M2727 Aftermarket 128MB PC100 DRAM DIMM (OEM# Q7709-67951). Keep your printer up and running with remanufactured and aftermarket printer parts with performance rates as good as OEM. These compatible parts go through an ISO-certified manufacturing process and are subjected to rigorous quality testing protocols. 1-year warranty.