Hi Christophe,...
I haven't tested it myself, but according to the Devolo website :
Are devolo adapters in different speed ranges (200, 500, 650, 1200) compatible with each other?
Yes, devolo products in different speed ranges are fully compatible with each other. In a mixed network, each adapter connects to all other adapters with the maximum possible speed. In a network consisting of, for example, a 200 Mbps adapter and two 500 Mbps adapters, the 200 Mbps adapter connects to the 500 Mbps adapters at 200 Mbps. At the same time, the 500 Mbps adapters exchange data with each other at 500 Mbps. The only exception are the older 14 and 85 Mbps adapters. These are not compatible with the current products.
ref :
http://www.devolo.ch/fr...
so this should NOT be a problem....
