They dont seem to be for sale anywhere.
Probably because the 'new' generation of boards quad sli/crossFire's
and there is little market. Keep watch'n ebay..an OC Panel went not
to long ago....there is still hope ClayDough...

Now if they put those pcie recievers on the back of a motherboard...
they would be 'On to SomeThing'.......I've heard that before somewhere..
I still think it is a very interesting..and more than doAble, worthwhile
.....Project: Not everthing is Black&White.