Tenda 9-Port 10/100Mbps Desktop Switch With 8-Port PoE - TEF1109P-8-63WBased on the original twisted pair, it can support up to 250 meters long distance transmission, breaking the hundred meters transfer limit. With 6KV lightning protection, it is the real monitoring private switch. Ports 1 8 support IEEE 802. 3at and IEEE 802. 3af PoE standard. It provides a maximum PoE output power of 30W to each port and 58W to the whole device. Up to 250 meters long distance transmission Due to the complex monitoring environment,