I have a case with a proper USB 3.0 cable that has the 20-pin connector. However, the mobo has two 10-pin USB 3.0 headers. Is there a cable solution to convert the 10-pin mobo USB 3.0 headers to a male 20-pin connector for the female 20-pin case cable?
Well, it looks like there must be no cable made to do this. Even the case manufacturer has pointed me to an add-in card for $30 more per build.
It seems that I will have to make my own cables for this. Why isn't anyone doing that now? The parts in quantity would be of minimal cost. It should cost about $5 for one complete adapter cable. It will cost me more than $15 for the parts, per case, at these low quantities.