with this usb hub, you can quickly and easily expand your pc or mac with 7 usb interfaces. each port complies with the usb 2.0 standard and thus provides data transfer speeds of up to 480 mbit, which is 40 times faster than the standard usb 1.1 standard. hubs provide all the benefits of usb: all connected devices are directly recognized through the hub, without the hassle and complicated installation, simply the right plug and play. in particular, working with usb 2.0-compliant peripherals such as a scanner and printer will be simplified. these are the times when the convenience associated with using usb had to pay off at a loss of speed. the dub-h7 can also be used without any problems for connection to usb devices of the usb 1.1 standard. it regulates data transfer, so the speed can be optimized even in the &, older&, usb standard. the hub has 7 type a downstream ports for connecting usb peripherals or other usb hubs and one type c usb upstream port for connecting to a computer. up to 127 usb devices (scanners, cameras, etc.) can be connected by cascading multiple hubs. extensive diagnostics via led indicators still indicate the status of the port.high speed data transfer 480 mbitmeets specifications for usb 2.0 and usb 1.1compatible downwards with usb 1.17 usb ports type a for downstream, 1x usb port type cplug and play support - the ability to connect and disconnect devices without having to restart your computerpossible connection to mac and pc mac os x 10.4 and higher, microsoft windows 10/8/7/vista/xpbattery charging 1.2 support for charging mobile phones, tablets, powerbanks and other devices (can be charged with current up to 2a - depending on the charger used) comes with a 1.2m usb (ac) cable and a 5v/3a power adapter.