RSC-R2UU-UA3E8+ - Supermicro 2U, UIO SLOT, 1 UIO,3 PCI-E X8 1 UIO slot, 3 PCI-Express x8. $288.94 $160.52
RSC-R2UU-U2E4E8G - Supermicro 1 UIO, 2 X4 AND 1 X8 IN X16 SLOT Riser Card 2U LHS Passive UIO to 1 x UIO (PCI-E x8), 2 x PCI-E x4, 1 x PCI-E x8. $119.92 $66.62
RSC-R2UU-2E4R - Supermicro 2U UIO RISER, UIO TO 2 PCI X4 RIGHT SIDE Riser Card 2U RHS Passive PCI-E x8 to 2 x PCI-E x4. $86.45 $48.03
RSC-R2UU-A4E8+ - Supermicro 2U UIO ACTIVE RISER, GEN2 SUPPORT Riser Card 2U LHS Passive UIO to 4 x PCI-E x8. $288.41 $160.23
RSC-R1UU-E8E16 - Supermicro UIO TO 1X PCI-E X8 & 1X PCI-E X16 Riser Card Standard 1U LHS Passive UIO to 1 x PCI-E x8, 1 x PCI-E x16. $99.85 $55.47