Cisco SRP541W Gigabit Ethernet Services Ready Platform 4-port 10/100/1000 Mbps Gigabit Ethernet managed switch, 2 x 10/100/1000 Mbps Gigabit Ethernet 2 x USB Port used for Wireless connectivity via supported 3G USB modem (not included) 802.11n Dual threaded Neill-Concelman (TNC) antennas 4 FXS, 1 FXO (active) voice ports