Tupavco Ethernet Surge Protector Gigabit PoE++ (154W/3.2A) Mounting Flange (Gas Discharge Tube) Metal Shielded RJ45 Lightning Suppressor - LAN Network CAT5/CAT6 Thunder Arrestor - GbE 1000 Mbps TP302

These surge arrestors seem ridiculously expensive, however speaking from experience of having purchased and examined several different brands and models of surge arrestors, I can say with confidence these are about as well made as you're going to find in this price point and for this type of usage/product.I have adopted extensive use of these (over 2 dozen and counting) on my home network. I have 3 mid-tier managed switches, router, gateway modem, and several unmanaged switches. Probably around 50 end points altogether. I have strategically placed these surge arrestors on my network primarily in order to isolate any potential damage caused by lightning.I learned my lesson a few years ago, when lightning struck my next door neighbor's house. A single CAT5 cable I had near the impact site acted as an antenna. The nearby strong electromagnetic field from the lightning strike was picked up by the CAT5 and fried every piece of equipment it was connected to, until one of my old servers at the time finally gave it enough resistance to stop the damage. I had over $14,000 in damaged equipment.Since then, as I said I've placed these (or similar units I tried before) surge arrestors across my network. Zero issues so far, with the exception of a couple of non-related compatibility issues that I'll discuss below. I live in Texas, and strong, violent thunderstorms are the norm here, especially in spring and summer. If you have not experienced a mid-west thunderstorm, then you will not understand. I moved here from the east coast years ago, and I had no idea they could be so intense until living here.Now, a brief word on compatibility issues. There are some devices that these don't play well with, but that is true with any device like this. These will introduce some additional resistance into your network cable/line, and some devices don't like them. For example, I have a small number of devices connected via SFP+ that even across short distances, when using CAT6 to connect the devices (because the run is too long for DAC's), I have found these devices don't like the surge arrestor between them. It results in erratic data transfer rates.The bottom line is these type of devices are crucial to include within your network design if you want to guard against lightning in particular, and/or any other similar type of electrical discharge risk. They are useful for segmenting your network, and especially to help protect valuable equipment.One word of caution: these devices do require proper setup and implementation. They must be grounded through the included ground wire. This means - contrary to some of the product photos - you can't simply screw them into a wall willy-nilly. Again, some thought is required - or at least prudent - prior to incorporating these (or similar) devices into your home or workspace.

I have had previous POE switches get taken out by nearby lightning strikes and wanted a way to get some protection. I have a nice PTZ POE camera mounted on an abandoned power pole and wanted to ground the CAT8 data cable outside. Since this Ethernet Surge Protector is not weather rated, I wanted a good solution. I found that the Restmo Mini IP44 Waterproof Outdoor Connection Box was an excellent fit and seemed like it would be a great solution. I bought the Restmo 4 pack [https://www.amazon.com/dp/B08CMSXWGF?ref=ppx_yo2ov_dt_b_product_details&th=1] and installed the Ethernet Surge Protector inside one of the waterproof boxes and mounted it out on the old telephone pole and connected the ground to the old ground wire running down the old pole; I had thought about getting a ground rod and putting my own ground in, but I am hoping the old pole ground is good. Only time will tell, but I am very optimistic about my set up and hope that the Waterproof Outdoor Connection Box I used might be of help for any others that want to mount the Ethernet Surge Protector in a wet location.

Works exactly as advertised. I've done my "homework" (research) and read many reviews for many products. Many reviews are cautionary tales, detailing the equipment damage (and regret!) associated with *not* having Ethernet surge protection in use. I currently use two of these; one to help protect the WAN port feeding my router, and one to help protect the LAN port (which feeds a 24 port all-PoE gigabit switch). After all, protection from surges and transient voltages is all about a "layered protection" approach! A few things of note: 1) a path to reference/ground/earth needs to be as conductive (low resistance and impedance) as possible. As such, that "ground" wire is supposed to be as short as possible. I don't find the cable length of these units too short; they appear to be the proper length for what they are designed to do. 2) These are Gas Discharge Tube units, as are typically used for telecom/datacom surge protection (I'm naturally skeptical, I opened one up by removing the four screws on each side. And, yes, you can clearly see the gas discharge tubes which provide protection for each Ethernet pair); the overall build does appear to be of high quality. 3) Again,"layered protection" should be your overall surge protection strategy (think about your broadband connection, perhaps a whole home surge protection device, decent surge protection power strips at the "point of use" for and switches/routers, etc. This is especially true for any Ethernet runs which are long (possible differences in potential) and/or leave the inside of your house/building and are exposed to the outdoors (lightning doesn't have to be a "direct strike" to wreak all sorts of havoc - surges can be induced from indirect lightning strikes, and so on). 4) Last but not least, most surge protection devices are - by design, meant to be "sacrificial". As in they fail to protect your equipment (I suppose the best analogy would be a fuse that blows). To be clear, I don't expect these devices to fail soon. But if or when they do, that means they worked! And for the price of these units, I'm OK with that.

Quality product.