Hello, iulia lehner.
Welcome to Microsoft Community!
I would like to further confirm your device model with you here. The Surface Studio 2 you mentioned is a flat screen computer, not a laptop. Typically it will be used directly from an outlet or AC power source. Therefore, I assume that you have a Surface Laptop Studio 2. Please understand that I am cautious, as there are a number of users in the community who are unable to accurately state the model number of their device. Confirming the model number is necessary to avoid unnecessary hassles.
If you are unable to purchase the right power adapter in Romania through Microsoft's official channels, you can also visit partner resellers such as Amazon, eBay, Best Buy, etc. to check the following charger models:
Buy Microsoft Surface 127W Power Supply – Microsoft Surface
The 127W power supply is capable of powering the Surface Laptop Studio 2.
If you wish to obtain a charger for another model, you will need to know the charging requirements for your device:
Surface power supplies and charging requirements - Microsoft Support
I would rather recommend that you buy Surface-specific accessories for the best compatibility.
These are the information I can share with you at this time.
I hope you stay safe.
Best Regards.
Leo.L - Microsoft Community Support Specialist