For enthusiasts, AMD will offer the X370 chipset for high-end systems as well as the X300 for high-end small form factor systems. One step below we have the B350 for mainstream systems, and at the bottom of the lineup we have the A320 for entry-level systems, as well as the A300 for entry-level SFF systems.
By our math, it looks like pairing an X370 chipset with a Ryzen CPU nets you six SATA ports, 32 lanes of PCIe connectivity, two USB 3.1 ports, and ten USB 3.0 ports. That's certainly not bad, but it puts the AM4 platform much closer to Intel's regular desktop machines than the Broadwell-E setups that come to mind when we talk about 8-core processors.
The site also received confirmation that AMD will not lock multipliers on its Zen-based processors.