Cisco-Linksys by Cisco LNE100TX EtherFast 10/100 LAN Card Compliant Standards - IEEE 802.3, 802.3u Cabling Type - Ethernet 10Base-T, Ethernet 100Base-TX Data Link Protocol - CSMA/CD Compliant Standards - IEEE 802.3, 802.3u Compliant Standards - IEEE 802.3, 802.3u