I've been using this for about 5 years. There are no problems with the operation. Included: USB cable (A TO A) There is no outer box or instruction manual. This is a USB hub with four USB 3.0 ports and an auxiliary power port. Data transfer and stable power supply are possible. It can be clipped to a computer, display, or desk. Stable power can be supplied by connecting the Micro-B power supply port (Micro-B cable is not included). It has a stylish black finish.