Let’s take a look at the ASRock Fatal1ty X370 Gaming K4, a aminstream motherboard with the AM4 socket, based on the AMD X370 chipset, supporting Ryzen CPUs. Check it out!
The AMD X370 chipset is the high-end model for the AM4 socket, used by the new Ryzen CPUs and the future seventh-gen APUs. The X370 differs from the mid-range chipset for this platform, the B350, by the number of PCI Express 2.0 lanes (eight, against six on the B350), USB 3.0 ports (two on the B350 and six on the X370), and SATA-600 ports (eight on the X370 and six on the B350).
Another difference is that the X370 supports splitting the 16 PCI Express 3.0 lanes on two slots (x8/x8 configuration), which the B350 doesn’t. Both the chipsets support two USB 3.1 ports, and RAID 0, 1, and 10.
You can see the ASRock Fatal1ty X370 Gaming K4 motherboard in Figure 1. It uses the ATX form factor, measuring 12” x 9.6” (305 x 244 mm).
Figure 1: ASRock Fatal1ty X370 Gaming K4 motherboard