Carrying twice the amount of black ink as the standard capacity LC3237 edition the high capacity LC3239XLBK offers you a great deal. Although this is also true of the genuine Brother LC3239XLBK, this compatible version offers an even lower cost per page.Great care has been taken by our compatible cartridge manufacturers to create an alternate version of the Brother LC3239XLBK that still performs well and offer some needed continuity in print quality.Each compatible Brother LC3239XLBK is filled with a huge amount of compatible black ink that can be easily dispensed by your inkjet printer and give great quality prints consistently. You can expect our compatible replacements for the Brother LC3239XLBK to offer an estimated 6,000 prints, allowing you to print off all of your necessary paperwork, without worrying too much about the expense.