On this pageThinkSystem SR665 V3 x8/x8/x8/x8 PCIe Gen5 Riser 3/4 Option KitPN4XH7A85888ThinkSystem SR665 V3 x8/x8/x8/x8 PCIe Gen5 Riser 3/4 Option Kit | Lenovo Server OptionsSee this document for information about the ThinkSystem SR665 V3 x8/x8/x8/x8 PCIe Gen5 Riser 3/4 Option Kit.Learn MoreThinkSystemSR665 V3OS Support MatrixOS IndependentOS IndependentGive feedback