I finally managed to upgrade my system into a smaller form factor thanks to the new Mini-ITX Biostar and Lazer3D L7Z 7 litres case!
Build components:
CASE: Lazer3D L7Z
MB: BIOSTAR X370GTN
CPU: Ryzen 7 1700 + Noctua NH-L12
RAM: Corsair Vengeance LPX 16 GB DDR4 2400 MHz
SSD: 2 x SAMSUNG 850 EVO...