HLL2321D Brother Single Function Monochrome Laser Printer helps in printing professional two-sided documents and booklets using the automatic duplex printing feature. It can create two-sided prints from one-sided originals when copying. This function reduces the need for paper while saving money. It has a built-in wireless network interface for sharing with multiple users on the network. One can also connect this HLL2321D Brother Single Function Monochrome Laser Printer locally to a single computer via its USB interface.