48 Gigabit Ethernet PoE+ ports and 6 10GbE SFP+ ports Dedicated intelligent thermal controller to control fan speed for energy saving and noise reduction Alive check of PoE powered devices to improve network reliability Dual firmware image for robust failover protection mechanisms Guaranteed PoE long distance up to 200 meters Post-feed protection to avoid damaging the PoE ports IP surveillance VLAN and voice VLAN to improve video and voice quality DHCP snooping to protect the integrity of the legitimate DHCP server and its operations Compliant with IEEE 802.3af/at PoE, up to 30W prp port (total power consumption: 400W) for powering PoE-enabled devices Supports SNMP v1/v2c/v3, Access Control List (ACL), QoS, 802.1Q VLAN, IPv4/IPv6, port trunking, port mirroring, IGMP v1/v2/v3 snooping, etc. Supports 216 Gbps backplane bandwidth, 160.7 Mpps forwarding speed, 32 K MAC address table and 12 KB jumbo frames