Amazon.com: JXSZ PCI-Express 8X to 16X Riser Adapter for 1u/2u PCI-E x8 to x16 Left-Facing 90-Degree Right-Angle Card : Electronics
PCIEX16E-844S | PCIe x16 edge connector to one PCIe x8 and two PCIe x4 Slots riser cable | x16 to x8 and x4 PCIe bifurcation riser cable | PCIEX16E-844S