Plug&play, simple set up with no software or configuration needed. Port-Power-Prioritization technology guarantees continuous power supply of key nodes. Watchdog function will detect the status of the powered device in real time, once an abnormality is detected, the switch will actively reset the problem port and restore power. Extend function support remote power and data feeding up to 250m long distance, which is easy to expand network via ethernet cable to somewhere without power supply but need fix device such as IP Cameras. Auto-sensing technology delivers up to 30W to an 802.3at PoE+ device with backwards compatibility for 802.3af PoE (15.4W) devices. 120 Watts Reliable IEEE 802.3af/802.3at PoE+ switch. 8 10/100Mbps POE Port and 2 Gigabit Uplink Port. Ideal for small installations of 8 PoE devices (IP Phone, Wired surveillance camera, Wireless Access Point).