A lot of routers have the possibility to centrally share files via a USB flash drive or external hard drive. With a router with NAS function, the hard drive is already integrated, or there's a possibility to integrate a hard drive. This way, sharing files is faster than via USB. Thanks to the integrated hard drive, you can use these routers to centrally store and view movies, music, digital photos, and other files. So do you want to easily and quickly use your files, apart from having an extensive computer network? If so, a router with a basic NAS function might be a solution for you.