Supermicro RSC-R1UF-E16R Supermicro RSC-R1UF-E16R. Host interface: PCIe, Output interface: PCIe $108.25 $60.14
Supermicro RSC-R1UG-A2E16-X9 GPU, 1U, LHS, Active, Output: (2) PCI-E x16 Signal: (2) PCI-E x16 $236.20 $131.22
RSC-R1UG-E16R-UP - Supermicro 1U RHS RISER CARD WITH 1 PCI-E X16 FOR UP GPU MB Riser Card GPU 1U RHS Passive PCI-E to 1 x PCI-E x16. $96.82 $53.79
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