22 + 2 + 2 + 1-port Gigabit Ethernet Layer 3 switch with stackbale 22x ports 100/1000 Mbps SFP ports, 2x combo ports RJ-45 / SFP, 2x 10G ports for receiving SFP + modules and 1x 10Gbps expansion slots for SFP + modules, Layer3 management via SNMP, Console, Telnet u. browser, supports IPv6, routing, layer 3 multicast, BGP4, OSPF, IP clustering, Span and Rapid Spanning Tree, VLAN, prioritization, 802.3ad trunking, port Mirroring, full / half duplex on all ports, incl. 48,3 cm ( 19 inch )mounting kit, optional redundant power supply can be retrofitted (RPS900W)