What are these? And what are they for? The article doesn't say what they do. If I had to guess, I'd say they are Power-over-Ethernet adapters?

its for a network through the electricity cables in the wall

Powerline adapters are cool but they are defiantly hit or miss. I have used probably a hundred or so sets of various brands and speeds etc and for the most part it can be a a solid alternative to wireless however one big draw back is the overall circuit of the house or office they are installed in...I have found about 30-40% of the time you can achieve better speeds with PCIe wireless adapter 2-3 antenna vs a powerline adapter. I have found it now cheaper to use PCIe wireless or even a strong USB adapter over a powerline adapter unless the distance is to great.

im been conisediring this for devices i cant get get wireless for, but i not sure the wiring in the house is over 20+ years old but then again it just needs to be on par with the 25mbit ish i get on wifi.

im been conisediring this for devices i cant get get wireless for, but i not sure the wiring in the house is over 20+ years old but then again it just needs to be on par with the 25mbit ish i get on wifi.

It won't be that fast, they never are. Plus you can have problems with intermittent drop outs. I tried them for a while. Now I'm planning running the cabling!

It won't be that fast, they never are. Plus you can have problems with intermittent drop outs. I tried them for a while. Now I'm planning running the cabling!

well that is bad then, no point in trying be cheaper runing the cable and lest headache then

Run five of these at home, the D-Link variety, they actually work very good. There are some draw backs, when they are all in use they will knock down to below 50Mbps. One of them is actually a wireless N extender.