Configure your network the way you like it with the comprehensive FRITZ!OS of the AVM FRITZ!Box 4040. Create a separate guest network, block specific websites, and access your files worldwide by using the router as a NAS. The AC WiFi standard provides a wireless speed of up to 867Mbps. You can stream movies and play video games simultaneously on the network. The FRITZ!Box 4020 is compatible with any DSL, cable, and optical fiber modem.