Fixable PCI-E Powered 16X to 1X Adapter Riser USB 3.0 Cable 60cm(2 feet)/Molex 4Pin To Sata 15Pin Power Connector OPENMART is the only authorized seller to sell OPENMART branded items. The pcie cable is Compatible with pcie slot 1x 2x 4x 8x 16x. When you use it, the "SATA 15pin Male to Molex 4pin power cable" should be used to get power. The molex powered cable is included in the package. With SATA 15pin Male to 4pin power cable,more powerful,and reduce the burden of the motherboard. If you want to insert or pull the pcie cable, computer has to be powered off first. It is important! Perfect for all kinds of Mining. The cable included in our package is customized, so do not use other cables instead of the original one. Compatible with 1x,4x,8x,16x card.When you insert the pcie cable to pcie slot, you have to insert it in the right way, easy to insert the pcie cable backwards. If you insert it in the wrong way, it may damage your motherboard. Extends 16x GPUs away from the motherboard. When you do not need to use it, do not pull the cables out too hard. Remember to turn off the computer first. This product only works for computer, not laptop.