Could i get RF G2 without the USB controller and just the interface? someone told me that there is a module to get but i couldn't find anything about it.

I don't want the controller because i think it will be cheaper without it

I believe you can only buy the interlink version with the USB controller now. You'll have to find a non-interlink version used if don't want the plastic controller/tx interface. If you find a non-interlink version used you can use a gameport/usb tx interface with it.

We are going to get one anyway with the controller. It will work fine, just take up more desk space.

Do i have to have the power for my transmitter on to use it? or does the cord power it?

You will have to turn your Tx on. GP thought of people like myself when they did this, because when I go to shut it down it reminds me to turn my Tx off.

does the controller ALWAYS have to be on even when using the Interface?

i think they should have it be powered by the interlink controller