Flexible USB 3.0 Powered PCI-E 1x to 16x Risers 80cm for Litecoin/Dogecoin Mining (Slim Model) Powered by SATA or Molex Connector Built-in PCI-E Video Detection Works in any PCI-E Slot, 1x, 4x, 8x, 16x! 2 Premium power filtering caps Great for mining Bitcoin, Litecoin, Dogecoin, Mooncoin, etc!