Linksys BEFSR81, Black, Blue Linksys BEFSR81. Networking standards: IEEE 802.1p, IEEE 802.3, IEEE 802.3u, Ethernet LAN data rates: 10,100 Mbit/s. Media access protocol: CSMA/CD. Security algorithms: 128-bit WEP, 64-bit WEP, WPA, Firewall security: Network address translation (NAT) firewall. Product color: Black, Blue. Interface: RJ-45, Networking features: Fast Ethernet, Connectivity technology: Wired