... Port USB HUB with Phone Holder 2.4 port USB2.0 3.Driverless, hot Plug-and-Play 4.Slim size,easy for carry 4 Port USB HUB ... with Phone Holder specifications1) USB 2.0 2) Expands 4 ports, compliant with ... or above New design conecpt,sophisticated fashion, pipeline ABS shell. USB bus power supply,no external power supply requiredAdopts electronic component ...