A:Answer Hello, if you go to Intel Ark and look up the i5 core for this model you will see that the motherboard uses has the ability of the PCI Express (Peripheral Component Interconnect Express - PCIe) expands up to 3.0, equivalent options are 1x16, 2x8, 1,x + 2x4, Max # of PCI Express Lanes is 16. This motherboard has 1S Scalability. Thank you for being an HP customer!
