TechPowerUp posted a review on the Shuttle Slim-PC DS81 w/ Pentium G3258
A quote from the article:
Shuttle's DS81 is a Haswell supporting barebone system, optimized to minimize space while still providing good performance. With its VESA mount it can easily be installed on the back of a monitor. Thanks to native 4K output you could even use it as media PC for your new UHD TV.Shuttle Slim-PC DS81 w/ Pentium G3258 @ techPowerUp