The uh400 usb hub supports all usb devices including usb drives mice printers or any other usb device you want to run simultaneously usb 30 ports offer transfer speeds of up to 5gbps 10 times faster than the usb 20 standard equipped with usb 30 ports uh400 provides a data transfer rate of up to 5gbps 10 times faster than usb 20 uh400 adds 4 additional usb ports to your pc making it unnecessary to switch between devices compact design with a retractable cable makes it an ideal usb h