Using the td w997039s multi functional usb 20 port users can share printers files and media either throughout the network at home with several different computers or even away using the device39s ftp server functions so that you never have to part with your files the ability to support up to 10 ipsec vpn tunnels simultaneously gives td w9970 users the flexibility to setup a virtual private network to guarantee network security and take advantage of network access whether at home or away for