Castle may have lost one

Be sure to keep an eye on the heat from the Quark. My limited experience with them showed that they generate a lot of heat, so you'll want to add the heatsink and probably fans to them.

I have mine wired up with a 1/4" thick piece of aluminum as a sink that was mounted to my chassis and on the hot day that I ran it, I was getting up to 170F, which I believe is within limits, but is still hotter than the 150 at which my MM runs.