Description VGA and DVI version support up to 1920 x 1080 60Hz. version supports up to 4K (3840 x 2160) 60Hz, 1080P 120Hz. Need HDMI0 support. lock plate treasure (Gong mother) at 4K 30Hz, 2K 60Hz stable use. VGA and display virtual machine, dummy load. Specifically 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. Small size, the latest chip, low power, no heat. Support plug and play, hot plug. No need to drive, support all systems. Color: gold Material: PC + metal Package Contents: 2 x VGA Virtual Display Adapter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.