Modern 15 -

msi slotSlot: 1x PCI-E x16 slot 1x PCI-E x1 slot PCI_E1 Gen PCIe 4.0 supports up to (From CPU) PCI_E2 Gen PCIe 3.0 supports up to (From Chipset) Audio: Realtek ® ALC897 Codec: 7.1-ChannelMEG B550 Unify and Unify-X offer four M.2 slots and three of them support PCIe 4.0 x4 to max out the performance PCIe 4.0 SSDs. The first M.2 slot (labeled as M2_1) is