When we place the motherboard in an angle we see the rather familiar socket LGA1151. It will support Coffee Lake procs, this is referred to as the 8th generation Core series processors. If you count along with me, he appears to feature a 10 power phase design for the CPU, which can help both with stability and overclocking.
Storage ports then -- ASUS is equipping the board with six SATA3 ports. There are two M2 slots that have been tucked away close to upper PCI-Express slots. See that in the photo below.
PCIe Gen 3 x4 is fast though, delivering up to 32 Gb/s data transfer speed per connector, the M.2 solution supports RAID modes. Again, the Z370 chipset runs out of PCIe lanes, the M2 units are shared in-between SATA ports. The lower M2 slot has a heat shield that sits under the heatsink, as shown in the photo above.
There are two M2 SSD slots available, two 8cm type 2242/2260/2280. All support PCIe x4/x2 Gen 3.0. With NVMe PCIe Gen3 x4 M.2 connectors onboard, however, are shared with the SATA connectors. So if you use the upper M2 slot then SATA1 will be disabled. For the 2nd M2 slot in use, it even means that port 5 and 6 are disabled.
And as stated on the previous page it supports single and dual channel with support up-to DDR4 4000 (O.C.) and starts at 2133 MHz memory modules. 4 x DDR4 DIMM sockets can sport up-to 64 GB of system memory. We recommend something in the middle, a nice 3200 Mhz kit, for example, is a good balance in perf/price ratio. Volume, in the end, matters more than frequency, keep that in mind.