Range
The maximum distance at which the adapter provides reliable data transmission over the mains wires; in other words, the longest length of electrical wires between the adapter and another Powerline device that maintains a good connection.
Note that manufacturers usually indicate the coverage radius for perfect conditions (high-quality wiring with minimal resistance, no interference, etc.), which are far from always found in real applications. Therefore, the actual coverage radius is often less than the claimed one, and it is worth choosing an adapter according to this indicator with a certain margin. However, even the most modest modern models provide a range of about 150 m, and in the most advanced it can be 300 m or more — this is quite enough not only for an apartment or house, but also for a fairly large office space.
Compatible adapters
Models of Powerline adapters that this device is guaranteed to be compatible with. This information makes it easy to choose equipment for building a Powerline network. At the same time, manufacturers, usually, do not provide compatibility with adapters from other companies, therefore, in this paragraph, only the name of the model is given, without specifying the brand.