Work with GAOMON PD1161 ONLY. The cable is suitable for the GAOMON pen display that you purchased after January 1, 2019.;1. Please plug the five connectors correctly and firmly without GAP left,and don't forget to connect the power adapter.(IMPORTANT)2.If you are using a desktop computer, HDMI connector should plug into the graphics card, but not the motherboard.(IMPORTANT)3.If there is no HDMI port on your computer/mac, you need an extra HDMI adapter~ For example: AGV to HDMI adapter, DVI to HDMI adapter,DP to HDMI adaptor, Thunderbolt to HDMI adapter, etc. (depends on what ports are there on your computer). Please use good quality HDMI Adapters.Otherwise,it may not work, or lead to wired situation on screen, such as red strange pot appears.;4.Q&AQ:Does this product come with a power adapter?A:No, it does not include the power adapter. It includes the 3-in-1 cable only;Q:Where can I find the power adapter that goes with this?A:Please send message to us;via Amazon Message or come to GAOMON Web, we have contact here! Don't worry we will send you the power adapter for sure!;5.Pure Copper Wires ensure the accuracy and high speed transmission without the picture distortion.;6.3-In-2 cable,HDMI,USB ,Power cable combine in one cable, which reduce the cable clutter.