JetStream™ 24-Port Gigabit PoE+ L2+ Managed Switch, 24 gigabit RJ45 ports including 4 SFP ports, 802.3at/af, 384W PoE power supply, Static Routing, support DHCP Server, Port/Tag/MAC/Voice/Protocol-Based VLAN, Q-in-Q(Double VLAN）, Port Isolation, STP/RSTP/MSTP, IGMP V1/V2/V3 Snooping, 802.1p QoS, Port Mirroring, Rate Limiting, LACP, 802.1x, L2/3/4 ACL, IP Source Guard, SSL, SSH, CLI, SNMP, RMON, 1U 19-inch rack-mountable steel case