Today is the day we review our first micro-ATX X399 motherboard, and it's the first of its kind on the market. While the motherboard does utilize the smaller micro-ATX form factor, it still maintains all the platform's many features and even adds a few extras for fun. Overclocking features are still maintained, and overall quality doesn't seem to have taken a hit. Many vendors have opted not to venture into the niche market of small form factor motherboards, but ASRock goes head first into these markets as we have seen with ASRock's Intel HEDT motherboards, so let's see what they have for AMD's HEDT platform.