CERRXIAN Ethernet Surge Protector RJ45 Coupler Female to Female Network Surge Protector Outdoor Arrester Protection Device Extension Adapter(2-Pack)

These seem to work. Have lost 2 TVs prior to buying these to lightning even with surge protection. Internet runs along power line.

So far so good, of course only a surge will tell in the fututre. Well made and fit perfectly . We had a lightning strike come in through the cable took out tv modem and royter and cable box, had surge protected wall oytlets but not the cable

Work fine but 100Mbps Not for 1Gpbs NICs

So far so good on these - been through a couple lightning storms and our equipment hasn't been zapped yet! Before these, I went through 2 wifi routers with lightning coming in through a buried CAT6 line.

I had tried 2 other lightning arresters. One switched the signal from 4 to 5. The other, did not switch any signals, but would not work in my setup. Perhaps I should explain my set up. I have a micro wave antenna which captures a signal from my ISP and converts it to an Ethernet signal. We live on a mountain in Tennessee which is often struck by lightning. Therefore, I really need lightning protection on any wired connection. From the ethernet signal from the antenna I connect with an ethernet 8 rj45 unmanned switch which supplies my EERO gateway and the fiberglass connection to my office. The other 2 arresters would not work. This one seems to pass the ethernet signal flawlessly. It is not connected to ground. All of the other 2 are connected to ground. Whether it will protect against lightning I do not know. When we have another storm with cloud to ground lightning I will report again. Amazon lets one add to reviews.

Overpriced and challenging to mount anywhere.

Been using 2 years without a problem, but how would you know if it did anything? I got these after an ethernet port on my router got fried where I had it connected to another building. I used a different port and installed one of these on each end of the wire with a 1 ft patch cord.

We had a lightning strike that took out all sorts of stuff, mostly internet stuff including stuff that was on surge/UPS protection. I now have an earth grounded surge protector on the twisted pair that comes in from AT&T. We assume that's how it got in and spread. These are in-line and don't require an earth ground so I put one on my generator (lost the logic board on this) and one on the line between my gateway and my switch.

المنتج جيدا شركه الشحن سيئة سيئه جدا وغير ملتزمة

For these to protect against electrical surges,so far so good