Here are the hardware highlights of each motherboard:
X370 Gaming Pro Carbon AC
| Form factor: | ATX |
| Chipset: | AMD X370 |
| DDR4 memory speeds (MHz): | 1,866/2,133/2,667(OC)/2,933(OC)/3,200(OC) |
| Memory channel: | Dual |
| DIMM slots: | 4 |
| Max memory amount (GB): | 64GB |
| PCIe x16 slots: | 3 |
| PCIe x1 slots: | 3 |
| SATA 3 connections: | 6 |
| M.2 slots: | 2 |
| Built-in LAN: | 1x gigabit |
| Ports (Front): | 4x USB 3.1 Gen1 Type-A 4x USB 2.0 Type-A |
| Ports (Back): | 1x USB 3.1 Gen2 Type-C 1x USB 3.1 Gen2 Type-A 4x USB 3.1 Gen1 Type-A 2x USB 2.0 Type-A 5x jacks + optical S/PDIF 1x DVI-D 1x HDMI |
| Nvidia SLI compatible: | Yes |
| AMD CrossFire compatible: | Yes |
| Other goodies: | Included Intel Wireless AC adapter Mystic Light RGB I/O cover and heatsink Golden audio jacks Intel Gaming LAN PCIe Steel Armor graphics card protection Gaming heatsinks MSI Audio Boost Gamer-focused BIOS |
| Product page: | Link |
 X370 Gaming Plus
| Form factor: | ATX |
| Chipset: | AMD X370 |
| DDR4 memory speeds (MHz): | 1,866/2,133/2,400/2,667(OC)/2,933(OC)/3,200(OC) |
| Memory channel: | Dual |
| DIMM slots: | 4 |
| Max memory amount (GB): | 64GB |
| PCIe x16 slots: | 3 |
| PCIe x1 slots: | 3 |
| SATA 3 connections: | 6 |
| M.2 slots: | 1 |
| Built-in LAN: | 1x gigabit |
| Ports (Front): | 4x USB 3.1 Gen1 Type-A 4x USB 2.0 Type-A 1x Serial port |
| Ports (Back): | 1x USB 3.1 Gen2 Type-C 1x USB 3.1 Gen2 Type-A 4x USB 3.1 Gen1 Type-A 2x USB 2.0 Type-A 6x audio ports 1x DVI-D 1x HDMI |
| Nvidia SLI compatible: | Yes |
| AMD CrossFire compatible: | Yes |
| Other goodies: | Golden audio jacks Intel Gaming LAN PCIe Steel Armor graphics card protection Gaming heatsinks MSI Audio Boost Gamer-focused BIOS Supports RGB Mystic Light |
| Product page: | Link |
B350 Gaming Pro Carbon AC
| Form factor: | ATX |
| Chipset: | AMD B350 |
| DDR4 memory speeds (MHz): | 1,866/2,133/2,667(OC)/2,933(OC)/3,200(OC) |
| Memory channel: | Dual |
| DIMM slots: | 4 |
| Max memory amount (GB): | 64GB |
| PCIe x16 slots: | 2 |
| PCIe x1 slots: | 3 |
| SATA 3 connections: | 4 |
| M.2 slots: | 2 |
| Built-in LAN: | 1x gigabit |
| Ports (Front): | 4x USB 3.1 Gen1 Type-A 4x USB 2.0 Type-A |
| Ports (Back): | 1x USB 3.1 Gen2 Type-C 1x USB 3.1 Gen2 Type-A 4x USB 3.1 Gen1 Type-A 2x USB 2.0 Type-A 5x jacks + optical S/PDIF 1x DVI-D 1x HDMI |
| Nvidia SLI compatible: | No |
| AMD CrossFire compatible: | Yes |
| Other goodies: | Mystic Light RGB I/O cover Golden audio jacks Intel Gaming LAN PCIe Steel Armor graphics card protection Gaming heatsinks MSI Audio Boost Gamer-focused BIOS |
| Product page: | Link |
B350 Gaming Plus
| Form factor: | ATX |
| Chipset: | AMD B350 |
| DDR4 memory speeds (MHz): | 1,866/2,133/2,400/2,667(OC)/2,933(OC)/3,200(OC) |
| Memory channel: | Dual |
| DIMM slots: | 4 |
| Max memory amount (GB): | 64GB |
| PCIe x16 slots: | 2 |
| PCIe x1 slots: | 2 |
| PCI slots: | 2 |
| SATA 3 connections: | 4 |
| M.2 slots: | 1 |
| Built-in LAN: | 1x gigabit |
| Ports (Front): | 4x USB 3.1 Gen1 Type-A 4x USB 2.0 Type-A 1x Serial port |
| Ports (Back): | 3x USB 3.1 Gen1 Type-A 1x USB 3.1 Gen1 Type-C 2x USB 2.0 6x audio ports 1x DVI-D 1x VGA 1x HDMI |
| Nvidia SLI compatible: | No |
| AMD CrossFire compatible: | Yes |
| Other goodies: | Golden audio jacks Intel Gaming LAN PCIe Steel Armor graphics card protection Gaming red heatsinks MSI Audio Boost Gamer-focused BIOS Supports RGB Mystic Light |
| Product page: | Link |
B350 Krait Gaming
| Form factor: | ATX |
| Chipset: | AMD B350 |
| DDR4 memory speeds (MHz): | 1,866/2,133/2,400/2,667(OC)/2,933(OC)/3,200(OC) |
| Memory channel: | Dual |
| DIMM slots: | 4 |
| Max memory amount (GB): | 64GB |
| PCIe x16 slots: | 2 |
| PCIe x1 slots: | 3 |
| SATA 3 connections: | 4 |
| M.2 slots: | 1 |
| Built-in LAN: | 1x gigabit |
| Ports (Front): | 4x USB 3.1 Gen1 Type-A 4x USB 2.0 Type-A 1x Serial port |
| Ports (Back): | 1x USB 3.1 Gen2 Type-A 1x USB 3.1 Gen2 Type-C 4x USB 3.1 Gen1 Type-A 2x USB 2.0 6x audio ports 1x DVI-D 1x HDMI |
| Nvidia SLI compatible: | No |
| AMD CrossFire compatible: | Yes |
| Other goodies: | Black and white gaming I/O cover and heatsinks Golden audio jacks Intel Gaming LAN PCIe Steel Armor graphics card protection Gaming red heatsinks MSI Audio Boost Gamer-focused BIOS Supports RGB Mystic Light |
| Product page: | Link |
That’s everything in a nutshell. Unfortunately, we have no idea when the five motherboards will hit the market, or for how much. However, MSI currently offers a large number of other motherboards based on AMD’s new AM4 processor socket that customers can buy through Newegg right here. These include the X370 Xpower Gaming Titanium ($300), the X370 SLI Plus ($150), the X370 Gaming Pro Carbon ($180), and many, many more.
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