Now the rumor mill claims the event will also include X370-based motherboards from a small number of vendors:
According to recent reports, a small number of motherboard manufacturers should also be in attendance at the event, showing-off their AM4-compatible motherboards based on the top-of-the-line X370 chipset. The X370 is the most advanced version of the Zen-compatible chipsets and is expected to provide extensive overclocking features and up to two third-generation PCIe x16 lanes for multi-GPU systems. Below the X370, the B350 and A320 take over the role of the mid-range and entry-level chipsets respectively. The new chipsets are expected to bring native M.2 NVMe & SATA Express connectivity, PCIe gen 3, DDR4 memory compatibility and USB 3.1 Gen2 to the company's high-end desktop platform for the very first time.Via: TPU