Powerline adapters (Ethernet over your power lines)
Also searched as: powerline · powerline adapter · powerline ethernet · ethernet over power · homeplug · power line networking · av2 powerline
What it means
A pair of adapters that carry your network over the electrical wiring already in your walls. One plugs into a wall outlet near your router with a short Ethernet cable; the other plugs in near your PC and gives you an Ethernet port over there. It is a way to get a wired-style connection to a room you cannot easily run a long cable to.
More detail
How well it works depends a lot on your house wiring, so it is uneven: two outlets on the same circuit and breaker can be great, while outlets on different circuits, older wiring, or long runs can be slower and flakier. Two honest rules help — plug the adapter straight into the wall, never into a surge protector or power strip (those filter out the signal), and treat the speed on the box as a best-case lab number you will not see in practice. …
In the Blackbook
The deeper explanation continues inside the app. The Blackbook publishes its verdicts here — the full write-ups stay in the book, on your rig, next to your own measurements.
The Compy Blackbook holds 191 graded entries like this one, judged against your hardware — and every change it does make is reversible, with the receipt to prove it.
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