Aside from buying one, what's a way of testing the speed

That's a really funny name for it, because there is also something called "power over ethernet." I feel like calling this ethernet over power is just begging for confusion. Is that its name in your country? In Burgerstan we call it powerline networking.

I can tell you from personal experience that I get 83% of my powerline adapter's rated speed on sustained LAN transfer, which is also more than enough to support my cheap broadband internet connection. Unfortunately an actual test under your conditions might depend on your store's return policies.

What I can say is that if you want best performance during the test:
>don't use the two outlets for anything except the adapters
>avoid running large appliances such as an air conditioning unit or vacuum cleaner on the same level/area of the home as the adapters
>don't run the signal between levels or sides of the home if you can avoid it
>take a look at the circuit breaker panel to get an idea of which rooms are on separate fuses and sides of the box

By buying it and returning it if it's not good?? You stupid fuck

>>61964835
Oh I almost forgot: run a constant ping from your computer to your router/modem during use. Some of these adapters have a power saving mode which can turn on when activity is at zero for some time. The ping will just make sure that doesn't happen so you can get a fair test. If you're otherwise happy, you can find a software utility which will disable power saving.

Say it with me
MoCA
o
C
A

You'll have to buy a set and return them (at a little loss to yourself) if they are not satisfactory.

>>61964873
Fucking this

95% of existing construction has Coaxial wiring throughout.

Use MoCA 2.0 adapter for ~400mbps, or Bonded MoCA 2.0 for 800-900mbps.

No need to worry about shitty powerline adapters or shitty wifi.