I'm flying the days to Peru and have seen the laptops, sd cards etc. There are pretty cheap ones. Can one there z.b. Buy a notebook without problems etc. Get Custom or other?
For electrical appliances, a CE mark must be present (for example, power supply from the notebook).
Otherwise you have to register at customs, if you have bought more than 430, - EUR, then you pay the import sales tax (19%).
You only get in trouble with the customs if you do NOT register the purchased notebook, so you want to evade the due customs and taxes!
The duty-free allowance for air travel is 430 euro. If you compare this amount with the purchase of Notebook us.w. Above all, you should register the goods, use the red exit to avoid trouble with the customs and a penalty. In any case, keep the receipts as proof of the purchase price.