Standards and Protocols: IEEE 802.3i, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3af, IEEE 802.3x, IEEE 802.1q, IEEE 802.1p, IEEE 802.3at, IEEE 802.3z, Interface: 9x 10/100/1000 Mbps RJ45 Ports; 1x 1000 Mbps Combo SFP/RJ45 Port; AUTO Negotiation/AUTO MDI/MDIX, Dimensions ( W x D x H ): 8.2 × 4.9 × 1.0 in (209 × 126 × 26 mm), Max Power Consumption: 7.66 W (220V / 50Hz with no PD connected); 141.54 W (220V / 50Hz with 123 W PD connected), Max Heat Dissipation: 26.12 BTU/h (220V / 50Hz with no PD connected); 482.65 BTU/h (220V / 50Hz with 123 W PD connected), Switching Capacity: 20 Gbps, Packet Forwarding Rate: 14.88 M