Ports: PoE+ Ports: 24 x 10Mb/s / 100Mb/s (at the same time the number of available ports on the PoE + mode, limited by capacity power supply), UPLINK SFP Poorts 1Gb/s x2, Uplink Combo x 2 :SFP(1Gb/s) + RJ45(1Gb/s), Protocols Support: IEEE 802.3 10BASE-T, IEEE 802.3u 100BASE-TX, IEEE 802.3ab 1000BASE-T, IEEE 802.3z 1000BASE-SX\LX, IEEE 802.3x, IEEE 802.1p CoS, IEEE 802.1D spanning tree protocol, IEEE 802.1s multiple tree protocol, IEEE 802.1ad LACP aggregation, IEEE 802.1Q VLAN tagging, VLAN, IGMP snooping, bandwidth management, QoS support, CoS support, MAC ADDRESS list: 8K, RACK Mount 19": 1U, Case: Metal, color navy blue, Power Efficiency: 370 W for ports 1 to 24, up to 30 W for one port,