The CSV-1555 is a USB3.2 Gen2 Type-C (DP Alt-Mode) to DisplayPort Dual Monitor 4K60Hz M/F MST hub. This USB-C MST hub is designed to cater for your most versatile connectivity demands, such as Mobile Phone, Tablet, laptop, etc. with a USB-C output which supports DP Alt-Mode.Give your Phone, Ultrabook more displays. Phones, Ultrabooks and notebooks are increasingly becoming more powerful and smaller in the physical form factor. With a single USB3.2 Gen2 port available you can now drive one- or two- Displayport screen simultaneously at 4K60Hz or One display at 4K120Hz. All it needs is a free USB3.2 Gen2 port with DP Alt-Mode on your Phone, Laptop or Ultrabook to connect to the MST hub and will provide you with unparalleled connection options for Dual 4K60Hz displays. The setup is easy and simple to do, provided your system supports this function.