Our inkjet cartridges are guaranteed to perform as well as your original Brother inkjet cartridge they are replacing. This compatible cartridge is manufactured in a way that it holds 2.5x the ink compared to OEM (more than double the ink you get in the original cartridge!) When you buy this inkjet cartridge you are buying a high quality cartridge from a reputable source at substantial savings compared to buying brother inkjet cartridges from office supply stores. LC41M (LC 41 magenta) compatible inkjet cartridge LC41M (LC 41 magenta)