Package Contents: 4-Pack Compatible Ink Cartridges for Brother TN221 TN225 1 Black 1 Cyan 1 Magenta 1 Yellow Compatible Printers: Brother HL-3170CDW, MFC-9330CDW, HL-3140CW, HL-3180CDW, MFC-9130CW, MFC-9340CDW, HL-3150CDW, HL-3150CDN, MFC-9140CDN, DCP-9020CDW Yield per cartridge approx.: 2500 pages black, 2200 pages yellow, 2200 pages magenta, 2200 pages cyan Intelligent Ink Cartridges: These toner cartridges are easy to be installed and can be recognized by the printer quickly ALLWORK adopts the advanced technology to supply reliable toner cartridges to customer, which makes it fluently to work