24x GbE Web Management, SNMP VLAN (802.1Q/MTU/Voice/Port-Based) QoS (802.1p/DSCP/Port-Based) Port Mirror, Static Aggregation, etc STP/RSTP and Loop Prevention DHCP Snooping, IGMP Snooping EEE (802.3az Power Saving) Managed/VLAN/Extend Preset Modes Desktop, Rack-Mount 440x180x44 mm (17.32x7.09x1.73'')