Quad analog upgradecable.Compatible with the following products: M9120 Plus LP PCIex16 (part # M9120 E512LPUF), M9120 Plus LP PCIex1 (part # M9120 E512LAU1F), P690 Plus LP PCIex16 (part # P69 MDDE256LAUF) and P690 Plus LP PCI (part # P69 MDDP256LAUF)