Feature: 1?3 port 10/100M RJ-45 2?2 port 100Base-Fx 3?Store and forward mode 4?10/100M auto-negotiation, maximum speed to 20/200M (full-duplex) 5?Supports IEEE 802.3x full-duplex flow control and back pressure half-duplex flow control 6?Supports MAC self-learning 7?Automatic MDI/MDI-X configuration 8?Port base VLAN 9?LED status of Link, activity, Full/half duplex, speed,and power on diagnostic function 10?Steel case Specification: Standard IEEE802.3、IEEE802.3u、IEEE802.3x Topology Star Number of Ports 3 Port 10/100Base-Tx And 2 Port 100Base-Fx