Cisco 4331 Router - 3 Ports - 3 WAN Port(s) - PoE Ports - Management Port - 6 Service Module, Integrated Services Card (ISC), Network Interface Module (NIM), SFP (mini-GBIC) Slots - 16 GB - Gigabit Ethernet - IEEE 802.3, IEEE 802.1Q, IEEE 802.3ah, IEEE 802.1ag - 1U - Rack-mountable, Wall Mountable - 90 Day: