This eliminates the need for additional cables or software installations on each computer. The device uses a USB port to connect a printer to the router, allowing any device on the network to access the printer. This device is useful for those who have multiple devices connected to their router and want to print documents without having to physically connect their computer to the printer. The AVM FRITZ!Box Druckeranschluss is a device manufactured by AVM Berlin that allows a printer to be connected directly to the FRITZ!Box router.