Ethernet Gigabit Surge Protector Kit with CAT 6a Jumper Cable and Ground Wire (Supports POE++, POE+, POE, Non-POE)

Using this to protect the connection between my cable modem and router, which is prone to surges coming in through the coax and destroying my modem and the WAN port on my router. Allows a 2.5GbE connection, even though it only claims gigabit.

Haven't had any more lighting issues but not sure if this product was the solution. So far so good.

I've got a UPS with ethernet, a whole-house surge protector, and 3 of these on the network, and speeds remain at 900 up and down. They did fluctuate until I swapped between IN and OUT, but it seems odd that it would not be bidirectional, so I think it was just reseating the plug. Whether they protect is not clear, hard to test, but the directions are not in Chinese or broken English, so that's encouraging.

Used this to protect a direct burial, shielded CAT6 ran 200 feet to a outdoor access point. there is some confusion about which way, or which is the in or out for the ethernet cable and what side does the stuff go to be protected. I guessed that the 'IN" would be ethernet going outdoors? Got a reply from vendor, but it did not answer my question. I grounded mine with a outdoor ground rod, using some additional 16 gauge copper wire to run it outdoors. I was hesitant about using my house's ground system, since my neuteals and grounds are bonded together in house panel. I do not have seperate ground wire to the meter. i am out of NEC as of 2006 standards. Using speedtest, the speed is same as cable indoors next to router.

Was impressed with the build quality. Item is a small aluminum enclosure. Didn't take it apart, but based on box and ground wire, appears to be a well built device. Bought it to provide network protection after the UPS network surge protector gave up its life protecting the rest of the network. That surge also fried the cable modem.

These protect my ethernet lines without affecting gigabit speed. They are easy to install. The grounding strap hooks over a standard plug, which is especially convenient. The inclusion of a short ethernet cable is much appreciated. Of course, the bottom line is do these work to protect ethernet against lightning strikes and other surges. I don't know, and perhaps I will be fortunate enough to never find out!

Bought two of these to protect Ethernet switches on both ends of a long (100’) underground cat5 cable run from my house to an out building. So far I have had to replace 2 switches due to lightning strikes. I now just keep a spare switch on hand. Not worth using these.

Easy to install, no speed loss on my 1GB service.