Pcie 3.0 X8 To X16 Riser Cable 64g/bps Pci-e 8x 16x 1u 2u Extender For Nvidia Gtx1080ti Gtx1070 Gtx1060 1050 Graphics Full Speed - Pc Hardware Cables & Adapters - AliExpress
PCIe 3.0 x8 vs. x16: Does It Impact GPU Performance? - YouTube
PCIe 3.0 x8 to x8 Cable Male to Female Extension 64G/bps PCI Express 8x 1U 2U RAID SSD Card Extender Cable Gen3.0|pcie 3.0|raid ssdextend cable - AliExpress
Titan X Performance: PCI-E 3.0 x8 vs x16
Amazon.com: ADT-LINK PCIe X8 to X8 Adapter Cable for Graphics Video Card PCI Express Extender PCIe X8 to PCIe X8 Slot Extension Cable for 1U 2U Server (5CM) : Electronics