The Vigor 3900 is a high-performance quad-Gigabit WAN firewall for high-performance applications. The 5 WAN ports on the Vigor 3900 can provide load balancing, WAN failover or bandwidth aggregation. Based on a Dray Tek OS platform, the Vigor 3900 combines high performance & capacity with Dray Teks traditional ease of use & comprehensive features set. For multi-tenant or departmental flexibility, the Vigor 3900 will support multiple LAN IP subnets, together with VLAN capabilities & user management, providing access to WAN resources only to the appropriate users or departments, as well as maintaining infrastructure efficiency.