4x downlink gigabit PoE Ethernet ports,2x uplink gigabit Ethernet portsOne-key CCTV mode,which can restrain network storm,realize VLAN function and 1~4 downlinkports only able to communicate with uplink ports;Power Input:DC48V~57V;Transmission Distance:0~100m;Standard:IEEE802.3, IEEE802.3u, IEEE802.3 af, IEEE802.3at, PoE adopts End-span;Protection:Superior lightning protection(6KV), ESD protection and anti-interference ability;Structure: stable and delicate, easy to install;Operation:plug and play, no any settings needed.reaches 4Mbit, Support 4K high-definition video transmission;PoE function: Fully support IEEE802. 3 af/ at standard, each portsupports max. 60W PoE output, total machine max. 135W PoE output, support total power consumptionalarm and indicator;Support Web- based Layer 2 network management, support VLAN, QoS, RSTP, SNMP etc.One- key CCTV, 1~8 downlink ports only can communicate with uplink ports in CCTV mode, which canrestrain network storm;6KV surge immunity, 8KV ESD protection and anti- interference ability;Quick installation, easy operation, convenient for desktop and standard19- inch rack installation. The lock design of AC connector make connection more reliable.