I am considering Ethernet over power.I presume that there are trade-offs between price and quality versus standard wireless. I would be considering this for an average size UK living room, with one router and three PCs.It would be used 80 to 90% for internet access, so only needs to match or beat Wi-Fi speeds. However, the rest of  the time, two laptops would be using it to back up to a file server PC, so that more bandwidth would be welcome. Although, once the first backup of everything is done, backups would be mirror backup, monitoring the file system and updating individual files as they change. So that might not be such a major consideration.What do you recommend for UK home use, and where should I buy it?
Ethernet over power (UK)
networking;ethernet;network adapter
I've used 3 different flavours of Ethernet over power. Apparently it's seriously dependant on your household power line quality, and other devices.Once I got it dialed in (and got slightly newer models than my homeplug AV 200 units), its fast and more importantly very reliable. More expensive adaptors support newer 'faster' standards, and practically speaking you're likely to get about 1/3 the speed listed (so a homeplug AV 100 would do ~30Mbps, and so on). However, the newer standards are likely to have better noise rejection and as such better reliability.A good middle ground would be HomePlug AV2 500 gear. AV2 200 is more sensitive to noise, and my washing machine would trip it off.Things to look out for? Get passthrough devices since they filter noise from things plugged into it, and don't hog a socket. Some tuning and repositioning needs to be better. If you're running this in a living room, consider units with more than one ethernet socket.While I don't use them now, I'd recommend TP-LINK's adaptors (I upgraded to a newer standard from another manufacturer - they're great but not widely available). They also have fairly intuitive, user friendly configuration software (though since all the chipsets are made by the same companies, I used it with my gear from other brands as well), which is handy if you want to set it up right.It's great for backups (which is what I use it for) and getting wired connections to odd places. I believe this is the two pack for the model I have now. Amazon UK seems to have a good range of them. Not too sure what's the best place for them in the UK, we share a plug type, but we have different retailers in Singapore.