Yes! Of course!
In the pledge details you can see how to add an extra module or PowerStrip, we wanted to clarify things by adding .11 cents or .22 cents but that's not possible to pledge on Kickstarter, so instead just pledge an extra
+1 Module: +€6 OR $7
+2 Modules: +€12 OR $14
Once the campaign ends, we will also allow you to buy an extra module or powerstrip through our own platform. More information on that near the end of the campaign!