The ASUS ROG Strix Z370-I Gaming is one of the major Mini-ITX options for Intels latest Coffee Lake processors. ASUS has a good history of building substantial Mini-ITX offerings, particularly with the ROG Impact line, however it is the Z-series mainstream Mini-ITX models that are the more cost effective option. For this generation, ASUS is combining dual M.2 slots, USB 3.1, EMI shielded audio and Wi-Fi on this small square platform. In this review we put it through its paces.