Kyocera 1T02MS0US0 Model TK-3102 Toner Cartridge for Ecosys M3040idn/M3540idn/FS-2100DN; Genuine Kyocera; Up To 12500 Pages Fits the following Models: M3040idn/M3540idn/FS-2100DN Estimated Yield Up to 12500 Pages Shipping Weight 1 Lb 8 Ounces Genuine Kyocera Shipping Dimmensions 12.7" x 5" x 4.8"