All genuine Brother printer supplies are engineered as part of the Brother printing system to deliver reliable, high-quality results. The cyan TN221C toner is balanced for even flow and consistent color. Compatible with Hl-3140CW, Hl-3170CDW, Hl-3180CDW, Mfc-9130CW, Mfc-9330CDW, and Mfc-9340CDW. Each cartridge yields approximately 2500 A4 or letter-size single-sided pages, and your printer will indicate when replacement is needed.