Need cooling solution for Dell Wyse 5070 thin version

I have a Dell Wyse 5070. I have the thinner of the two official 5070 models, the one without the extra port and the internal fan with processor Intel Celeron J4105.

I live in a hot place and the cpu is heating up quickly even on normal tasks with Win10.

Any workaround to ziptie a molex chassis fan from a 12V usb charger on 220V mains?