UPGRADE Powerline Model No. PLA-407

Is there a Zyxel Powerline Product which is compatible with the PLA-407 and will handle Gigabyte data transmission? I would like to upgrade some adapters, In other words, I would like to retain the use of the PLA-407 adapters in some locations and in other a Gigabyte capable adapters on the same network.
I saw a compatibility list once before, but I cannot find it now.

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