I am on a tight budget, and would like to some voice recording (e.g. podcasts). I have a decent condenser mic, but I do not have a phantom power supply. The phantom power supply/interface only needs one channel, and all it needs to do is provide phantom power. I have an XLR-XLR cable to connect my mic to the power supply/interface and an XLR-USB cable (no phantom power) to connect from the interface to my computer.
This is one I have been looking at: http://www.amazon.com/InnoGear%C2%AE-Condenser-Microphone-Recording-Equipment/dp/B00KAPGLQC
Will this do what I want? If not, what is an affordable phantom power supply for my 48V condenser mic? And is connecting the power supply/interface with an XLR-USB cable non-ideal?