Features:

• Work As A Desktop PC: this dock is special designed for Surface Pro 3/4, it can make the surface pro3/pro4 into a PC completely and greatly improve your work productivity.
• As A Support for Surface Pro3/4: this device is an ideal support which can be adjusted according to your favorite sight view, perfect when you watching videos.
• Plenty Ports Include: 3x UBS3.0 ,1x UBS2.0; 1x 100M Ethernet port ; 1x 3.5mm Audio port, 1x Power Input, Convenient for you to connect the mouse, keyboard, and more.