Standars: IEEE 802.3, IEEE 802.3u, IEEE 802.3x Interface: 8 10/ 100M, Auto-Negotation, Auti MDI/ MDIX Feature: Half and Full Duplex, Mac Address Learning, 1.6Gbps backplane bandwith Dimension: 5.5 x 3.4 x 1.1 in ( 140 x 87 x 27.5 mm)