Intel has disclosed the information about the upcoming Z390 chipset. Intel Z390 gets Wireless-AC and USB 3.1 Gen2 After looking at the diagrams we can only see one main difference between Z390 and Z370 chipsets, the onboard Wireless-AC 802.11ac and Bluetooth 5. There are no changes to the number of PCIe lanes or memory support. There is, however, a change to USB 3.1 support. The Z390 supports Gen2 while Z370 only Gen1. Throughout the marketing materials, Intel seems to underline the fact that Z390 is designed for unlocked processors (for overclocking).