I got one of these with my Foxtel installation. I was originally pretty skeptical, but it works great and the speeds don't seem to be any different to my wireless connection. I am running the power-line adapter into a switch and feeding a few connections off it.

I don't know how it will work with your specific power setup tho...perhaps buy it from somewhere like Dick Smith - if it doesn't work then take it back for a refund...

Dan

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