Provides four 2.5G / 1Gbps RJ45 ports Provides two 10 Gigabit uplink SFP+ optical ports All ports support wire-speed forwarding and automatic rollover Support standard switching, VALN isolated working mode Plug and play, can be racked Support IEEE 802.3ae, 802.3bz, 802.3ab protocols Network Standard IEEE 802.3 、IEEE 802.3 i、IEEE 802.3u、IEEE 802.3ab、IEEE 802.3 z,IEEE 802.3x port 4 2.5G/1Gbps RJ45 ports 2 10 Gigabit SFP+ optical ports Indicator light 1 Speed/Link/Ack indicator per port 1 Power indicator per device performance Store and Forward Support 16K MAC address table depth Use environment Operating temperature: 0°C~40°C Storage temperature: -40°C~70°C Operating humidity: 10%~90%RH, non-condensing Storage humidity: 5%~90%RH, non-condensing Input power 100-240V~ 50/60Hz Dimensions (L x