Technically, according to USB specification as well resolved that the voltage from the power supply is not on the uplink port (the connection between the PC and Hub) is displayed as it is bie many low stroke of the event wass often leads to mysterious errors (PC locks up completely, it will no longer work all USB ports, etc.). Thus this device is ideally equipped only for use in industry and for the rough everyday office life.
With the USB 3.0 specification, the maximum current was increased to 900 mA. These are provided by the stroke that included power supply per USB port also available. In order for the power supply of most external 2.5 hard drives should be backed up in accordance with the USB specifications - even if the starting current is temporarily more than 900mA. A Y-USB cable, which does not meet the USB specifications, I have not been needed. That was the EX-1177 but also not the case.
To date (4 weeks) runs this hub under a variety of scenarios and configurations so far stable and without interference. High technology has its price, this seems whether the üpig dimensioned performance, high-quality finish and the stable and trouble-free function but justified. Cheaper is determined, but better? That one also still be able to mount it on the wall or under the desk, this device once again makes it more personable.
The only complaint is that there are no status messages to occupied / active devices. But that the function limits does not appreciably; would rather a comfort feature.
Data transfer rates will follow shortly. Apropos: If you want more details about this device of wisssen can look on "you tube" under "Unboxing USB 3.0 Hub EXSYS EX-1188HMS" a video about ...
Who does something "stylish" like, which can also for EX-1181 Exsys EX-1181 Elegant 10 Port USB 3.0 HUB with iPod / iPhone connection, incl. Power supply and USB access 3.0 cable but it has "only" 5V / 4A. ..