The recommended adapter must supply 19 V and 4.7 A, otherwise the monitor cannot be operated correctly. On digitec.ch you can find this power adapter that meets the requirements: https://www.digitec.ch/de/s1/product/samsung-ba44-00290a-ac-adapter-60-w-notebook-netzteil-708859?supplier=8560040&

Please note that this power adapter was originally designed for other Samsung monitor models, but the specifications match those of your monitor. For exact compatibility, it is recommended to check the product description and reviews on the website.