Built in Ethernet, USB and parallel interfaces enable you to use this model as a stand-alone printer, or to provide network printing, PC fax sending and internet fax support. Dual paper trays for a 500-sheet standard paper capacity allows storage of both letter and legal pap so that incoming faxes print automatically on the correct paper size. Whether printing incoming faxes, or using the 50-page capacity auto document feeder to make copies at up to 15 cpm, you can expect, crisp, clear, professional output every time. High speed 33.6 Kbps fax modem is capable of transmitting as fast as two seconds per page, or of slowing down automatically to communicate with slower machines. Spend less time replacing supplies and help reduce operating costs by using the Brother Genuine high-yield replacement toner cartridge. 8 MB standard memory stores up to 600 fax pages. Memory upgrades are also available for use in higher-volume network environments. Access to incoming faxes can be controlled through the use of a password, assuring that confidential incoming faxes will not fall into the wrong hands. Free online, call or live chat support for the life of your product.