PCIe x1 -> x16 Adapter Extender Cable w/ Molex Connector (Back-Ordered)
$17.50
Wow they are expensive. There has got to be a better place.
Get ASUS M5E or P8Z77-V Premium. Those board can play games and have 4 PCIe slots But for mining dedicated ASIC and FPGAs are better and cost effective than GPU right?