Can anyone with an HD Homerun please look at their power adaptor and see what the power output/input is? I've been given an amazing deal on one that is minus the power adaptor so need to source a replacement. I understand there are two versions, one has a ~7W useage, and the newer ~4.5W but that's all i can find.

The woman i spoke to on the phone didn't have another unit on hand to tell me herself so i'm here asking you fine folks. 

Thanks in advance.