Answer
When you connect to an exchange other than your home exchange you are charged the exchange connection fee of 2.50 EUR per connected exchange, per calendar year.
DEGIRO charges an exchange connectivity fee in order to set up trading opportunities. This provides access to a large number of exchanges and provides technical support within Europe, Asia and North America. The fee is levied upon those who are using these exchanges. DEGIRO uses a pay-per-use policy in its pricing; this means you will only incur a fee if you make use of a particular service.
The exchange connection fees will be applied if you carry out a transaction or hold a position on an exchange other than your home exchange during the calendar year.