- For connecting up to 4 USB devices (e.g. a USB memory stick, an external hard drive) to a USB 3.0 port ,- Great distance between sockets makes it easier to plug in wider USB plugs/dongles ,- Bus powered, i.e. power supply via the USB socket of a PC/notebook ,- Integrated USB cable for connection with a PC/notebook ,- Suitable and tested for USB 3.0, also works with USB 2.0 devices ,- USB 3.0 is up to 10 times faster than USB 2.0 , ,System Requirements: ,- Operating system: Windows 10/8/7/Vista/XP as of SP3 and Mac OS as of 10.8 - Connection: USB-A Plug ,- Connection Cable: Integrated ,- Number of USB Ports: 4 Ports ,- USB Standard: USB 3.0 ,- Model: Bus Powered ,- OTG Capable: No ,- Colour: Black 2 years legal warranty only