Supermicro PERIPHERAL, RSC-R1UU-UE16 Riser Card Standard 1U LHS Passive UIO to 1 x UIO (PCI-E x8), 1 x PCI-E x16. $86.45 $48.03
Supermicro PERIPHERAL, RSC-R1UU-E8R+ REV 1.00, PBF Motherboard Slot Type - UIO Slot; Riser Card Output Slot(s) - 1 PCI-E x4/8. $39.92 $22.18
Supermicro PERIPHERAL, RSC-R2U-2E8 RSC-R2U-2E8, signal 2x PCI-E x8 2.0, output 2x PCI-E x8 2.0, 2U, LHS $99.76 $55.42