Toggle switch for Interstate 75 power on/off

Hello, I’d like to add a switch to the Interstate 75 so I can switch both the board and the LED matrix at once. Currently it’s all powered through the USB C on the Interstate. Looking at something like this: TWTADE 10Pcs Rocker Switch ON/Off 2Pin Latching Square Toggle SPST Switch Snap with Wires KCD1-X-F: Amazon.com: Industrial & Scientific

Is there a pin on the board that I could use, or do I need to figure out a way to add this switch on the USB cable?