Supermicro RSC-G-66 1U Active GPU Riser Card with 2 PCI-Ex16 for SXM2

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Supermicro RSC-R1UW-E16 1U LHS WIO Riser card with one PCI-E x16 slot

Supermicro 1U LHS PCI-E x16 Riser Card P/N: RSC-GN2-A68

Supermicro RSC-R1UG-A2E16-X9 1U PCIe X16 GPU Riser Card

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Supermicro RSC-R1UG-E16R+II 1U Passive PCIe x16 Riser Card