RB1U4OCU_G4 1U Riser supports 4 OCulink (PCIe4.0 x4) Print Specifications Physical Status Dimensions1.24" x 4.23" (31.6mm x 107.5 mm) I/O Upstream interfacePCIe4.0 x16 External4 OCulink (PCIe4.0 x4) The specification is subject to change without notice in advance. ASRock Rack is the ...