CABLE-EPCIE1628"Y"extends and splits 1 x PCI Express 6-pin power connector into dual PCI- Express 2.0 8(6+2) pin connectors. Its extended length provides a better solution for graphics cards used on Extended ATX Motherboard. Using this cable will allow you to do upgrade without having to change power supply and it is 100% compatible. It supports 6-pin or 8-pin graphic cards and is great for NVIDIA SLI cards (requires quad 6-pin PCI Express 2.0) or ATI CrossFire cards (requires dual 8-pin PCI Express 2.0). Just connect the cable to one 6-pin PCI-Express from power supply and achieve dual 6/8-pin PCI Express 2.0 output to your latest graphic card. This cable is specially designed for the High-end system and it is Skulltrail compatible.