This is the third pair I have bought. One pair provides 100Mbps Ethernet over 200m of Category 5e cabling. The other 2 pairs provide Ethernet connectivity to two outside buildings served by unused phone company taps (200ft and 500ft). will. Easy to set up (make sure one device is configured as CO and the device on the other end is configured as RT) and easy to use. These devices have already proven themselves with my customers. Additional info: 2 weeks ago one of the pair of devices failed to connect. When using another pair to troubleshoot, it was discovered that one unit had failed. I contacted Tupvaco, spoke to Duca and they sent me a replacement unit. I installed the switches, connected them to the objects and the client started working. No service problems. I would highly recommend Tupavco and their gear
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