Model Number : N50 > N50-AS031C N50-123456 N50-234567 Expansion SlotsSlot Location 1 : MIO Slot for Audio card PCI-E x1 is not supported Slot Location 2 : PCI-E x1 Slot Location 3 : PCI-E x1 Slot Location 4 : PCI-E x1 Slot Location 5 : PCI-E x1 Slot Location 6 : PCI-E x1 Slot Location 7 : PCI-E x4