If our X99 and X299 Mini-ITX motherboard reviews revealed anything, it's that we, the enthusiast PC community, should have pushed manufacturers a little harder to develop motherboards for AMD's proposed DTX form factor. Case makers were onboard, as the DTX proposal brought us the double-slot cube cases that could hold a Mini-ITX motherboard and double-slot graphics card. But DTX also extended board depth by 74mm, providing more space for DIMM slots and big voltage regulators without forcing cases to be either taller or wider. Yet the boards never came, and case makers repurposed the leftover space at the front of their cases for 3.5? drive bays. Because Micro-ATX is only semi-compact, Mini-ITX remains the only truly compact solution for performance enthusiasts.