While it works fine to transfer the desktop of your smartphone via HDMI to the LCD TV and view videos / games, but the charge current is insufficient. The consequence is that the battery discharges, despite simultaneous charging.
After some discussion with the seller could adjust it with the Galaxy S4. This is probably because the cable is very long and therefore simply too many losses occur.
Once an improved version is available, I'll adjust my rating accordingly.
Until then, I can not forgive only benevolent 2 stars.
