Specific that the role is: to simulate a display, the main use are: remote control of the computer screen resolution can be set very high, not the lowest resolution black screen state. Scientific calculation of the graphics card to work properly, heat normal. To solve the mining, no reason to stop the graphics do not work the problem. display the main advantages of the virtual machine: Up to 4K resolution can be simulated, that is, 3840 * 2160 resolution. Small size, the latest chip, low power consumption, no heat.support plug and play, hot plug.no need to drive, support all systems. Specification: Size: As shown in the figure Package includes: 1 Pc device For computer Note:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!