product description zyxel xs1920 12 switch 12 ports managed rack mountable device type switch 12 ports managed stackable enclosure type rack mountable subtype 10 gigabit ethernet ports 10 x 10gbase t 2 x combo 10 gigabit sfp performance switching capacity240 gbps brvbar forwarding performance1786 mpps mac address table size 16k entries routing protocol igmpv2 igmp igmpv3 policy based routing pbr remote management protocol snmp 1 rmon 1 rmon