TechPowerUp checked out the SilverStone SUGO 16
A quote from the article:
The SilverStone SUGO 16 is a compact, almost cube-shaped chassis with a volume of a mere 13 liters. With its steel construction, it strives to be an SFF chassis that offers a mix of hardware compatibility for those not looking to push the performance envelope while fitting into compact desktop spaces.SilverStone SUGO 16 Review