When I decide to go for any cartridge, there are various factors that I consider in order to make sure that I will be working with an effective system. Some of the factors that I go for include compatibility since it is necessary to make sure that it will work with a variety of printers. This ensures I will not go looking for any specific printer in order to make sure that they will work properly. Another important factor to consider is the cost factor which goes a long way in helping to make sure that I will reduce costs when printing. With the Brother TN-670 New Compatible Black Toner Cartridge, saving on costs will be a regular thing.