Hi Per, your requested configuration is not possible unfortunately. The only ways to get 4K UHD at 60Hz is via DisplayPort 1.2 or HDMI 2.0. The 290 features only one DP 1.2 output and no HDMI 2.0 output so it only allows for one 4K panel at 60Hz. The second one can be connected via HDMI (1.4) but will only work at 30Hz.