On this pageThinkSystem SR860 V4 4 x16 & 2 x8 PCIe Gen5 Riser 1/3 FHFL Option Kit PN4XH7B08909 ThinkSystem SR860 V4 4x16 & 2x8 PCIe Gen5 Riser 1/3 FHFL Option Kit | Lenovo Server OptionsSee this document for information about the ThinkSystem SR860 V4 4x16 & 2x8 PCIe Gen5 Riser 1/3 FHFL Option Kit.Learn More ThinkSystemSR860 V4 OS Support MatrixOS IndependentOS IndependentGive feedback