This is a really good RJ-45 transceiver for SFP port. Tested on TP-LINK ER7206. This allowed me to use my SFP port for the WAN port and free up one of the RJ-45 ports for multi-WAN uplink to the ISP. This option also eliminates the need to add an additional RJ-45 to fiber optic converter device, which also requires power. It makes things easier and easier. My only complaint/minor is that it feels warm and sticks out like a thumb. However, the performance has never suffered. I don't know about its durability but compatibility, functionality, rated speed and performance is a winner.
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