Type-A (rectangle) plugs into the PC.
Type-B (square) plugs into the monitor.
To use Razer Chroma with your ViewSonic Elite RGB gaming monitor you need at least one Razer Chroma supported device. You can find a full list of compatible devices at the following link
After you connect your Razer Chroma supported device and ViewSonic Elite gaming monitor, download Razer Synapse 3 by following the steps below:
* ATTENTION! Make sure the box for “CHROMA CONNECT” is also selected before downloading Razer Synapse. This is necessary to connect your monitor.
Once you have created your account, your monitor will be able to activate the in-game profiles of over 135 major game titles created by leading game developers. To view the full list of compatible games, go to https://www2.razer.com/chroma-workshop/games.
For more information about Razer Chroma, please visit https://www.razer.com/chroma.