22+2+2+1-port stackable Gigabit Ethernet Layer3 switch with 22x ports 100/1000 Mbps SFP ports, 2x combo ports RJ-45/SFP, 2x 10G ports for accommodating SFP+ modules and 1x 10Gbps expansion slots for accommodating of SFP+ modules, Layer3 management via SNMP, console, Telnet and browser, supports IPv6, routing, Layer 3 multicasting, BGP4, OSPF, IP clustering, spanning and rapid spanning tree, VLAN, prioritization, 802.3ad trunking, port Mirroring, full/half duplex on all ports, including 19' mounting kit, redundant power supply