Microsens Gigabit Ethernet Micro-Switch 45x45 vertical design, 4x10/100/1000T with 1000Baese-LX Uplink and 10/100/1000T Downlink, 1310nm Single Mode ST 10km, int. 230VAC power supply, manageable (web/Telnet/SNMP/ opt. NMP software), VLANs, QoS, Security