8 Port Fast Ethernet Unmanaged Harsh POE Switch6 × 100M PoE ports, 2 × Hi-PoE port, 1 × gigabit RJ45 port and 1 × gigabit SFP fiber optical port. IEEE 802.3at/af/bt standard for Hi-PoE ports (Max. 90 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. PoE output power management.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. Wider temperature (-30 to 65 °C) access design. Wire-speed forwarding. Store-and-forward switching. Solid high-strength metal shell. Reliable fan-free design.