4 Port Fast Ethernet Unmanaged Harsh POE Switch3 × 100M PoE ports, 1 × Hi-PoE port, 1 × gigabit RJ45 port and 1 × gigabit SFP Fiber Optical Port.IEEE 802.3at/af/bt standard for Hi-PoE port (Max. 60 W PoE output).IEEE 802.3at/af standard for PoE ports (Max. 30 W PoE output).IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.3z and IEEE 802.3ab standard.6 KV surge protection for PoE ports.Up to 300 m long-range transmission.PoE watchdog to auto detect and restart the cameras that do not respond.Port isolation to improve network security.Wire-speed forwarding.Wider temperature (-30 to 65 °C) design.Store-and-forward switching.Solid high-strength metal shell.Reliable fan-free design.
