I'm currently looking at running just a single K16. Has anyone given any thought to using a wall wart with a Molex connector (e.g.
http://amzn.com/B002TJNDU4) and running it through a molex-->pcie adapter? Are there any reasons why that wouldn't work? I would love not to have a large, exposed power supply if I don't have to.
I've been toying with the idea of doing something like this. I want to use a wall wart to power my RPi and my single K16. It should be possible(and less noisy than an ATX PSU).
That wall wart you linked to puts out 12 V, which is fine for a K16(iirc), but the RPi needs 5 V. An LM7805 or similar would do the job.
Using that same wall wart to power a USB hub should also be possible, but I only have the one K16 so I'm not going to bother with a hub