Turns a 1x PCI-E port into #4 1x PCI-E lanes. Best to use risered powered if you are ballsy enough to attempt using this thing.
How well do you guys think this would work to add more GPUs to your machine? Would you be able to turn a 6 GPU machine into a 9 GPU? Are we still going to encounter issues with the motherboard seeing it? Very interesting concept. The most I've seen so far is 8 GPUs on one machine and that was tricky business.