RSC-R1UU-2E8 - Supermicro 1U-SXB1 SLOT(X7DXU/PDSXU) TO 2XPCI-E(X8) Motherboard Slot Type - UIO Slot (X7DxU, PDSxU); Riser Card Output Slot(s) - 2 PCI-E x8. $56.54 $31.41
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-E8PR Motherboard Slot Type - UIO Slot (X8DTU/-F, X7DWU, X7DCU); Riser Card Output Slot(s) - 1 PCI-E x8. $43.54 $24.19
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
RSC-R1U-E16R - Supermicro 1U - SXB2 SLOT TO 1X PCI-E SLOT - Form factor 1U; - Interface PCI-Ex16; - 1 x PCI-E x16. $50.06 $27.81
RSC-R2UU-E8E16 - Supermicro LEFT SLOT UIO, UIO SLOT (X8DTU/-F - Position: Left Slot UIO (X8DTU/-F); - Interface 1 PCI-E x16, 1 PCI-E x8. $86.89 $48.27