brother is a company with a long tradition that has long been producing printing devices such as printers, fax machines, typewriters and multifunction devices. of course, it also produces various consumer accessories for its products. the advantage of genuine accessories is 100% product compatibility and maximum print quality that cannot be achieved with non-genuine accessories. brother original tn-3380 toner cartridge for use with this hl-5440d, hl-5450dn, hl-5470dw, and hl-6180dw laser equipment tn-3380 toner yields up to 8,000 a4 pages at 5% coverage. the reasons for using genuine accessories are as classic as other manufacturers, maintaining equipment warranty, extending service life and maintaining high quality prints as standard.