Prior to allowing access to a trusted network, remote users’ systems are scanned to determine if the appropriate Symantec AntiVirus software is in place and virus definitions are up-to-date. 5640. Usb Network Adapter Reviews For Desktop Pc Applications. Add Gigabit Ethernet capabilities to a desktop or laptop, without opening the computer or taking up an available expansion slot; Replace a failed integrated network adapter with an external, USB Gigabit Ethernet…