ChenYang PCI-E Express 1x to 16x Extension Flex Cable Extender Converter Riser Card Adapter 20cm Support PCIe 1X card and 4X,8X,16X card( only provide 1X speed). High speed FFC cable is flexible for 1U,2U,3U chassis. Layer PCB bard designing. 1-slot PCI-E 1X riser card with normal ribbon cable. PCI-E Express 1x To 16x Extension Cable Extender Converter Riser Card Adapter 20cm