1.@All customers NOTE: A USB mouse and mouse sharing device controls 2 HDMI interface computers. If your computer monitor is a VGA interface, you need to purchase a VGA to HDMI converter. | 2.@All customers NOTE: Apple device is not supported, and the product has no power supply. (The product does not need external power supply, just connect the USB of the computer, the USB interface can supply the device.) For HDMI + USB Type-B port PC (external abnormal power supply) Or the voltage is too high, the power supply will damage the equipment) | 3.@All customers NOTE:LED Display for monitoring status, Do not Support 3D, 4K | 4.HDMI Digital Monitor Support, Fully Compliant with HDMI, also HDCP Compliant | 5.Support Win98/98SE/2000/ME/2003/2008/XP/Win7/Win8/WinNT, Netware, Unix, Linux,