Review on 💻 Tupavco TP302 Ethernet Surge Protector (2 Pack) with PoE+ Gigabit and Gas Discharge Tube for Full Protection - RJ45 Lightning Suppressor - Mounting Flange - Ideal for LAN Network CAT5/CAT6 - Thunder Arrestor - GbE 1000 Mbps. by Richard Gaines

What it's for, pretty good. I like the metal case, ground wire. Decent build quality inside. The description is not very detailed, but gas lines are mentioned. (Update: Description now has _much_ more information!) There is no mention of the lack of diodes. But that's a little less money than the L-Com with diodes and gas tubes. So if you feel your situation doesn't warrant the extra money for a double layer of protection, then this could be for you.