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HomePlug powerline networking adaptors buying advice - PC Advisor
Compatibility betweeen standards
In order to ensure compatibility between products from different manufacturers, most products have adopted a standard networking protocol called HomePlug. In fact, the terms ‘powerline’ and ‘HomePlug’ are often used as though they’re interchangeable, but there are competing standards. HomePlug is the most popular, though.
You can mix and match Powerline adaptors running at different speeds and from different manufacturers – as long as they all support at least HomePlug AV. Naturally, faster adaptors can talk to slower ones only at the lower speed.
Beware of older kits still on sale that are based on an earlier standard called HomePlug 1.0. These run at a maximum speed of 85Mbps – which will probably still be adequate for many home users – but they’re not compatible with faster HomePlug AV products running at 200Mbps or more. They'll co-exist on the same mains wiring, but cannot talk to each other. Most home users should probably stick with newer HomePlug AV products in order to keep things simple.