works flawlessly with small drawbacks

Since our NUC unfortunately only has one HDMI output, the old monitor but only a VGA input and the NUC also has no other sound output, had an adapter ago, which converts not only the HDMI signal to VGA, but also the audio signal passes on its own output jack. This makes this inexpensive adapter properly.
Unfortunately it was not possible for me to connect the phone cable to the boxes directly to the adapter, without the sound was either very noisy or very quiet. This was achieved only with the supplied cable. However, I needed then another Klinkenkoppler which connected the plug speakers to plug the supplied cable. This design works perfectly, but is unnecessarily burdensome.
For me personally, the plug is unfortunately so advised that the connected VGA connector projects beyond the NUC, so I can not lie down the NUC, without unnecessary side pressure on the connector is exerted. But this may not the plugs.