Does anyone know if the DreamSoucre shop is in USD and if they accept Paypal ? I emailed them but no reply yet, and they have a sale on. The only other place I've checked for the U3pro32 is Amazon, and IDK if it's a copy, or the real thing, but I'd rather buy from the source.
For the SDS2204X-plus, I found a PCI-E 1X cable, and a twisted pair cable, for the LVDS's to the panel inside an LCD monitor. IDK enough about characteristic impedance, but it looks about the size of 28AWG wire.
So I'm going to make 2 PCB's probably just with trough-hole for now, and try a few channels. If it works any good, I'll have to crave up some wood or plastic, and /or glue something together, to make a jacket for the male PCI-E jack, so it would fit nicely in the port.
I went ahead and ordered the DSlogic U3pro32, they list in USD and take paypal. It was $100 off reg price.
I'll keep them in mind for someday when I get a USB scope.