Motherboard MSI Z77A-GD55
Will run 7 GPUs
Used this board but had to return it. I bought a new board in the meantime so I don't need this one.
MSI sent me a new one back (different serial number, different mac address).
This is a brand new board, all accessories are in their package. I can provide receipts and rma docs if you need.
Review:
http://hexus.net/tech/reviews/mainboard/39737-msi-z77a-gd55-intel-ivy-bridge-motherboard/Specs:
http://www.msi.com/product/mb/Z77AGD55.html$100USD + shipping from Canada
Bitcoin (using bitcoinaverage.com/#USD price) or Paypal