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
Supermicro PERIPHERAL, RSC-R2UW+-2E16-2E8 Riser Card 2U LHS Passive WIO+ to 2 x PCI-E x16, 2 x PCI-E x8. $142.16 $78.98
Supermicro PERIPHERAL, RSC-R2UU-3E8G-O-P Riser Card 2U LHS Passive UIO to 3 x PCI-E x8. $100.08 $55.60
Supermicro PERIPHERAL, RSC-R1UG-E16R Riser Card Standard 1U RHS Passive PCI-E x16 to 1 x PCI-E x16. $73.44 $40.80