Operate the Fritzbox with hard drive as a NAS in the home network / Integration as drive in Explorer - YouTube
AVM FRITZ!Box 4040 Wireless Router (Cable/DSL/Fibre Modem, Dual WLAN AC+N, 866 Mbps and 400 Mbit/s , 4 x Gigabit LAN, 1 x USB 3.0, 1 x USB 2.0, Media Server): Amazon.de: Computer & Accessories
AVM Fritz! Box 3370 – Everything's Networked with Fritz - Programing4Us - Enterprise
Fritz!Box "USB port" - YouTube
Die FRITZ!Box als NAS und Medienserver nutzen - WinTotal.de