The device looks chic and came significantly smaller from the package as I had expected. It made a great impression on the table, the holding device for mobile phone or tablet is also practical.
I usually have a USB flash drive and a mouse connected to my computer after I had joined the Ugreen hub to my computer and mouse stick on stroke happened not say anything the mouse LED remained dark and the USB stick is not connected , Only by pressing the button, the devices have been connected, and regardless of whether the power supply was inserted.
So I made still following test. Computer shut down, power strip for computer and hub from. After socket and computer rebooted. With my old USB hub then immediately all connected USB devices are connected, in which Ugreen I had to re-press the button. This is definitely a disadvantage and a no-go for me, so I packed up and sent back the unit again. That is why only two stars.
As a pure charger it seems to do that. My s4-mini and the mini-s3 my wife were charged, but I have no longer tested the charging function extensively.