The ASRock Z370M-ITX/ac motherboard comes with a great looking design. The PCB has a matte black finish and the heatsinks feature dark covers. The layout has been well thought and there are plenty of useful features, like one header to attach external USB 3.0 ports, SATA 6Gbps Ports and an M.2 Gen 3 x4 slot.
The ASRock Z370M-ITX/ac comes with a digital 6 phase power design regarding the CPU. The CPU power design, which is controlled by an Intersil ISL95866 dual-loop multi-phase controller. Furthermore there are PK618B and PZ0903BK PowerPAKs from NIKOS on the high- and low- side.
This board has been equipped with a total of two DIMM-slots. Officially supported is everything up to DDR4 4000 (O.C.). There is engough space between the DIMM-slots and the CPU socket which means that you wont encounter compatibility problems with big coolers even when you choose to install RAM with big heatspreaders. Also supported are Xtreme Memory Profiles (XMP) in version 2.0.
The PCH as well as the current converters are being held at adequate temperatures via passive heatsinks. The heatsink for the current converter is made from one small aluminium block. While the heatsink on the current converter has been secured with screws, the small heatsinks used on the PCH sports a push-pin system. The PCH heatsinks are all quite simple and flat. The cooling blocks have been very well made and also they are perfectly attached to the board to provide enough pressure on the components they have to cool.